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    <timestamp>2017-08-26T20:07:03Z</timestamp>
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    <text bytes="735" xml:space="preserve">&lt;strong&gt;MediaWiki has been installed.&lt;/strong&gt;

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    <timestamp>2017-08-30T23:45:59Z</timestamp>
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&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net Verilog]&lt;/div&gt;
Verilog problem set
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&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net Verilog]&lt;/div&gt;
Verilog problem set
&lt;/div&gt;</text>
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    <timestamp>2017-08-31T07:39:53Z</timestamp>
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== Welcome ==
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This site has a collection of tools that can be used to help learn digital logic (in Verilog) and assembly language programming (Nios II and ARMv7). 

These were originally created to go with several &lt;abbr title="Mainly ECE241, 243, 253"&gt;second-year computer engineering courses&lt;/abbr&gt; at the University of Toronto. You may find these useful either on their own, or used as part of a similar course.

Why? Practice is essential when learning any new language (whether programming, HDL, or human). These tools were created to make it easier to do more practice with feedback.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net Verilog]&lt;/div&gt;
Verilog problem set, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://asmbits.stuffedcow.net Assembly]&lt;/div&gt;
Two assembly language problem sets, for Nios II and ARMv7, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://nios.stuffedcow.net Simulator]&lt;/div&gt;
A simulator and debugger for Nios II and ARMv7 systems, including some I/O devices (excludes MMU). The simulated I/O devices are based on the computer systems used by the Altera University Program. 

Can be used to test and debug assembly language programs without having real hardware.
Debugger is better than real hardware: Has assertions to catch common mistakes, and faster. Simulation speed tends to be slower than hardware, which may limit its use in real-time applications.

&lt;/div&gt;

===Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
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== Welcome ==
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div.panel img { 
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float:left;
margin-right: 0.6em;
width: 60px;
height: 42px;
}
&lt;/style&gt;&lt;/html&gt;

This site has a collection of tools that can be used to help learn digital logic (in Verilog) and assembly language programming (Nios II and ARMv7). 

These were originally created to go with several &lt;abbr title="Mainly ECE241, 243, 253"&gt;second-year computer engineering courses&lt;/abbr&gt; at the University of Toronto. You may find these useful either on their own, or used as part of a similar course.

Why? Practice is essential when learning any new language (whether programming, HDL, or human). These tools were created to make it easier to do more practice with feedback.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net Verilog]&lt;/div&gt;
Verilog problem set, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://asmbits.stuffedcow.net Assembly]&lt;/div&gt;
Two assembly language problem sets, for Nios II and ARMv7, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://nios.stuffedcow.net Simulator]&lt;/div&gt;
A simulator and debugger for Nios II and ARMv7 systems, including some I/O devices (excludes MMU). The simulated I/O devices are based on the computer systems used by the Altera University Program. 

Can be used to test and debug assembly language programs without having real hardware.
Debugger is better than real hardware: Has assertions to catch common mistakes, and faster. Simulation speed tends to be slower than hardware, which may limit its use in real-time applications.

&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
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  <revision>
    <id>10</id>
    <parentid>9</parentid>
    <timestamp>2017-09-03T22:52:48Z</timestamp>
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== Welcome ==
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learning design of computer hardware and computers?

This site has a collection of tools that can be used to help learn digital logic (in Verilog) and assembly language programming (Nios II and ARMv7). 

These were originally created to go with several &lt;abbr title="Mainly ECE241, 243, 253"&gt;second-year computer engineering courses&lt;/abbr&gt; at the University of Toronto. You may find these useful either on their own, or used as part of a similar course.

Why? Practice is essential when learning any new language (whether programming, HDL, or human). These tools were created to make it easier to do more practice with feedback.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net Verilog]&lt;/div&gt;
Verilog problem set, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://asmbits.stuffedcow.net Assembly]&lt;/div&gt;
Two assembly language problem sets, for Nios II and ARMv7, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://nios.stuffedcow.net Simulator]&lt;/div&gt;
A simulator and debugger for Nios II and ARMv7 systems, including some I/O devices (excludes MMU). The simulated I/O devices are based on the computer systems used by the Altera University Program. 

Can be used to test and debug assembly language programs without having real hardware.
Debugger is better than real hardware: Has assertions to catch common mistakes, and faster. Simulation speed tends to be slower than hardware, which may limit its use in real-time applications.

&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>c89bc066b224ae962964b5043633ea753eb62852</sha1>
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  <revision>
    <id>11</id>
    <parentid>10</parentid>
    <timestamp>2017-09-04T05:05:51Z</timestamp>
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&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #fcfeff;
    margin: 0.5em 1.5em;
    display: block;
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div.panel a {
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div.panel img { 
display:block;
float:left;
margin-right: 0.6em;
width: 60px;
height: 42px;
}
&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site helps you learn the fundamentals of the design of computers&lt;/b&gt;

This site has a collection of tools that can be used to help learn digital logic (in Verilog) and assembly language programming (Nios II and ARMv7). 

These were originally created to go with several &lt;abbr title="Mainly ECE241, 243, 253"&gt;second-year computer engineering courses&lt;/abbr&gt; at the University of Toronto. You may find these useful either on their own, or used as part of a similar course.

Why? Practice is essential when learning any new language (whether programming, HDL, or human). These tools were created to make it easier to do more practice with feedback.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net Verilog]&lt;/div&gt;
Verilog problem set, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://asmbits.stuffedcow.net Assembly]&lt;/div&gt;
Two assembly language problem sets, for Nios II and ARMv7, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://nios.stuffedcow.net Simulator]&lt;/div&gt;
A simulator and debugger for Nios II and ARMv7 systems, including some I/O devices (excludes MMU). The simulated I/O devices are based on the computer systems used by the Altera University Program. 

Can be used to test and debug assembly language programs without having real hardware.
Debugger is better than real hardware: Has assertions to catch common mistakes, and faster. Simulation speed tends to be slower than hardware, which may limit its use in real-time applications.

&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
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  <revision>
    <id>12</id>
    <parentid>11</parentid>
    <timestamp>2017-09-05T04:52:07Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
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&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #fcfeff;
    margin: 0.5em 1.5em;
    display: block;
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div.panel img { 
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width: 60px;
height: 42px;
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&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site helps you learn the fundamentals of the design of computers&lt;/b&gt;

This site has a collection of tools that are used to help learn several fundamental topics in the design of computer systems: digital logic and assembly language programming.

These tools were originally created to go with several &lt;abbr title="Mainly ECE241, ECE243, ECE253"&gt;second-year computer engineering courses&lt;/abbr&gt; at the University of Toronto. You may find these useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to encourage doing more practice on short and quick problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net Verilog]&lt;/div&gt;
Verilog problem set, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://asmbits.stuffedcow.net Assembly]&lt;/div&gt;
Two assembly language problem sets, for Nios II and ARMv7, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://nios.stuffedcow.net Simulator]&lt;/div&gt;
A simulator and debugger for Nios II and ARMv7 systems, including some I/O devices (excludes MMU). The simulated I/O devices are based on the computer systems used by the Altera University Program. 

Can be used to test and debug assembly language programs without having real hardware.
Debugger is better than real hardware: Has assertions to catch common mistakes, and faster. Simulation speed tends to be slower than hardware, which may limit its use in real-time applications.

&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>1cb1e04dc6a43568c5e28df412faf80060a3e2ee</sha1>
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  <revision>
    <id>14</id>
    <parentid>12</parentid>
    <timestamp>2017-09-05T04:57:53Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
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&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
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&lt;b&gt;This site helps you learn the fundamentals of the design of computers&lt;/b&gt;

This site has a collection of tools that are used to help learn several fundamental topics in the design of computer systems: digital logic and assembly language programming.

These tools were originally created to go with several &lt;abbr title="Mainly ECE241, ECE243, ECE253"&gt;second-year computer engineering courses&lt;/abbr&gt; at the University of Toronto. You may find these useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to encourage doing more practice on short and quick problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net HDLBits &amp;mdash; Verilog practice]&lt;/div&gt;
Verilog problem set, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://asmbits.stuffedcow.net Assembly]&lt;/div&gt;
Two assembly language problem sets, for Nios II and ARMv7, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://nios.stuffedcow.net Simulator]&lt;/div&gt;
A simulator and debugger for Nios II and ARMv7 systems, including some I/O devices (excludes MMU). The simulated I/O devices are based on the computer systems used by the Altera University Program. 

Can be used to test and debug assembly language programs without having real hardware.
Debugger is better than real hardware: Has assertions to catch common mistakes, and faster. Simulation speed tends to be slower than hardware, which may limit its use in real-time applications.

&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
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&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site helps you learn the fundamentals of the design of computers&lt;/b&gt;

This site has a collection of tools that are used to help learn some fundamental topics in the design of computer systems: digital logic and assembly language programming.

These tools were originally created to go with several &lt;abbr title="Mainly ECE241, ECE243, ECE253"&gt;second-year computer engineering courses&lt;/abbr&gt; at the University of Toronto. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to encourage doing more practice on short and quick problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net HDLBits &amp;mdash; Verilog practice]&lt;/div&gt;
Verilog problem set, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://asmbits.stuffedcow.net Assembly]&lt;/div&gt;
Two assembly language problem sets, for Nios II and ARMv7, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://nios.stuffedcow.net Simulator]&lt;/div&gt;
A simulator and debugger for Nios II and ARMv7 systems, including some I/O devices (excludes MMU). The simulated I/O devices are based on the computer systems used by the Altera University Program. 

Can be used to test and debug assembly language programs without having real hardware.
Debugger is better than real hardware: Has assertions to catch common mistakes, and faster. Simulation speed tends to be slower than hardware, which may limit its use in real-time applications.

&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>2f6ef92b65a4e45dcf1bff7d428ffc077cf7b6af</sha1>
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width: 60px;
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&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site helps you learn the fundamentals of the design of computers&lt;/b&gt;

This site has a collection of tools that are used to help learn some fundamental topics in the design of computer systems: digital logic and assembly language programming.

These tools were originally created to go with several &lt;abbr title="Mainly ECE241, ECE243, ECE253"&gt;second-year computer engineering courses&lt;/abbr&gt; at the University of Toronto. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to encourage doing more practice on short and quick problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net HDLBits &amp;mdash; Verilog practice]&lt;/div&gt;
Verilog problem set, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://asmbits.stuffedcow.net ASMBits &amp;mdash; Assembly programming practice]&lt;/div&gt;
Two assembly language problem sets, for Nios II and ARMv7, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://nios.stuffedcow.net Simulator]&lt;/div&gt;
A simulator and debugger for Nios II and ARMv7 systems, including some I/O devices (excludes MMU). The simulated I/O devices are based on the computer systems used by the Altera University Program. 

Can be used to test and debug assembly language programs without having real hardware.
Debugger is better than real hardware: Has assertions to catch common mistakes, and faster. Simulation speed tends to be slower than hardware, which may limit its use in real-time applications.

&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>2fa3cf1586a6d9d77f9dd2ec98465eeb11e02596</sha1>
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display:block;
float:left;
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width: 60px;
height: 42px;
}
&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site helps you learn the fundamentals of the design of computers&lt;/b&gt;

This site has a collection of tools that are used to help learn some fundamental topics in the design of computer systems: digital logic and assembly language programming.

These tools were originally created to go with several &lt;abbr title="Mainly ECE241, ECE243, ECE253"&gt;second-year computer engineering courses&lt;/abbr&gt; at the University of Toronto. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to encourage doing more practice on short and quick problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net HDLBits &amp;mdash; Verilog practice]&lt;/div&gt;
Verilog problem set, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Asmbits_logo.png|link=http://asmbits.stuffedcow.net|60x42px]][http://asmbits.stuffedcow.net ASMBits &amp;mdash; Assembly programming practice]&lt;/div&gt;
Two assembly language problem sets, for Nios II and ARMv7, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://nios.stuffedcow.net Simulator]&lt;/div&gt;
A simulator and debugger for Nios II and ARMv7 systems, including some I/O devices (excludes MMU). The simulated I/O devices are based on the computer systems used by the Altera University Program. 

Can be used to test and debug assembly language programs without having real hardware.
Debugger is better than real hardware: Has assertions to catch common mistakes, and faster. Simulation speed tends to be slower than hardware, which may limit its use in real-time applications.

&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>77f1e78b66dd43b424e969612a6f620dc388e1bf</sha1>
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  <revision>
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    <parentid>19</parentid>
    <timestamp>2017-09-05T19:33:27Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
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== Welcome ==
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display:block;
float:left;
margin-right: 0.6em;
width: 60px;
height: 42px;
}
&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site helps you learn the fundamentals of the design of computers&lt;/b&gt;

This site has a collection of tools that are used to help learn some fundamental topics in the design of computer systems: digital logic and assembly language programming.

These tools were originally created to go with several &lt;abbr title="Mainly ECE241, ECE243, ECE253"&gt;second-year computer engineering courses&lt;/abbr&gt; at the University of Toronto. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to encourage doing more practice on short and quick problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net HDLBits &amp;mdash; Verilog practice]&lt;/div&gt;
Verilog problem set, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Asmbits_logo.png|link=http://asmbits.stuffedcow.net|class="imghalf"]][http://asmbits.stuffedcow.net ASMBits &amp;mdash; Assembly programming practice]&lt;/div&gt;
Two assembly language problem sets, for Nios II and ARMv7, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://nios.stuffedcow.net Simulator]&lt;/div&gt;
A simulator and debugger for Nios II and ARMv7 systems, including some I/O devices (excludes MMU). The simulated I/O devices are based on the computer systems used by the Altera University Program. 

Can be used to test and debug assembly language programs without having real hardware.
Debugger is better than real hardware: Has assertions to catch common mistakes, and faster. Simulation speed tends to be slower than hardware, which may limit its use in real-time applications.

&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>770538d2e0fae8f4bddec29997f3072b012ac428</sha1>
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  <revision>
    <id>21</id>
    <parentid>20</parentid>
    <timestamp>2017-09-05T19:35:08Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
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&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
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display:block;
float:left;
margin-right: 0.6em;
width: 60px;
height: 42px;
}
&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site helps you learn the fundamentals of the design of computers&lt;/b&gt;

This site has a collection of tools that are used to help learn some fundamental topics in the design of computer systems: digital logic and assembly language programming.

These tools were originally created to go with several &lt;abbr title="Mainly ECE241, ECE243, ECE253"&gt;second-year computer engineering courses&lt;/abbr&gt; at the University of Toronto. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to encourage doing more practice on short and quick problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net HDLBits &amp;mdash; Verilog practice]&lt;/div&gt;
Verilog problem set, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Asmbits_logo.png|link=http://asmbits.stuffedcow.net|class=imghalf]][http://asmbits.stuffedcow.net ASMBits &amp;mdash; Assembly programming practice]&lt;/div&gt;
Two assembly language problem sets, for Nios II and ARMv7, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://nios.stuffedcow.net Simulator]&lt;/div&gt;
A simulator and debugger for Nios II and ARMv7 systems, including some I/O devices (excludes MMU). The simulated I/O devices are based on the computer systems used by the Altera University Program. 

Can be used to test and debug assembly language programs without having real hardware.
Debugger is better than real hardware: Has assertions to catch common mistakes, and faster. Simulation speed tends to be slower than hardware, which may limit its use in real-time applications.

&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>ec67ad16b065b4b38d09806df22e827aa9860f10</sha1>
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  <revision>
    <id>22</id>
    <parentid>21</parentid>
    <timestamp>2017-09-05T19:36:44Z</timestamp>
    <contributor>
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&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #fcfeff;
    margin: 0.5em 1.5em;
    display: block;
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}
div.panel img { 
display:block;
float:left;
margin-right: 0.6em;
width: 60px;
height: 42px;
}
&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site helps you learn the fundamentals of the design of computers&lt;/b&gt;

This site has a collection of tools that are used to help learn some fundamental topics in the design of computer systems: digital logic and assembly language programming.

These tools were originally created to go with several &lt;abbr title="Mainly ECE241, ECE243, ECE253"&gt;second-year computer engineering courses&lt;/abbr&gt; at the University of Toronto. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to encourage doing more practice on short and quick problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net HDLBits &amp;mdash; Verilog practice]&lt;/div&gt;
Verilog problem set, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Asmbits_logo.png|link=http://asmbits.stuffedcow.net]][http://asmbits.stuffedcow.net ASMBits &amp;mdash; Assembly programming practice]&lt;/div&gt;
Two assembly language problem sets, for Nios II and ARMv7, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_hdlbits.png|link=http://verilog.stuffedcow.net]][http://nios.stuffedcow.net Simulator]&lt;/div&gt;
A simulator and debugger for Nios II and ARMv7 systems, including some I/O devices (excludes MMU). The simulated I/O devices are based on the computer systems used by the Altera University Program. 

Can be used to test and debug assembly language programs without having real hardware.
Debugger is better than real hardware: Has assertions to catch common mistakes, and faster. Simulation speed tends to be slower than hardware, which may limit its use in real-time applications.

&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>5c418ae830aea83233c9f6cad7828bbf1156c714</sha1>
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display:block;
float:left;
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width: 60px;
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&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site helps you learn the fundamentals of the design of computers&lt;/b&gt;

This site has a collection of tools that are used to help learn some fundamental topics in the design of computer systems: digital logic and assembly language programming.

These tools were originally created to go with several &lt;abbr title="Mainly ECE241, ECE243, ECE253"&gt;second-year computer engineering courses&lt;/abbr&gt; at the University of Toronto. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to encourage doing more practice on short and quick problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net HDLBits &amp;mdash; Verilog practice]&lt;/div&gt;
Verilog problem set, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Asmbits_logo.png|link=http://asmbits.stuffedcow.net]][http://asmbits.stuffedcow.net ASMBits &amp;mdash; Assembly programming practice]&lt;/div&gt;
Two assembly language problem sets, for Nios II and ARMv7, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_niossim.png|link=http://nios.stuffedcow.net]][http://nios.stuffedcow.net CPU Simulator]&lt;/div&gt;
A simulator and debugger for Nios II and ARMv7 systems, including some I/O devices (excludes MMU). The simulated I/O devices are based on the computer systems used by the Altera University Program. 

Can be used to test and debug assembly language programs without having real hardware.
Debugger is better than real hardware: Has assertions to catch common mistakes, and faster. Simulation speed tends to be slower than hardware, which may limit its use in real-time applications.

&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>499ebdc9b4852c1170dc63b2913dd6f8f3165f6f</sha1>
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&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site helps you learn the fundamentals of the design of computers&lt;/b&gt;

This site has a collection of tools that are used to help learn some fundamental topics in the design of computer systems: digital logic and assembly language programming.

These tools were originally created to go with several &lt;abbr title="Mainly ECE241, ECE243, ECE253"&gt;second-year computer engineering courses&lt;/abbr&gt; at the University of Toronto. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to encourage doing more practice on short and quick problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net HDLBits &amp;mdash; Verilog practice]&lt;/div&gt;
Verilog problem set, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Asmbits_logo.png|link=http://asmbits.stuffedcow.net]][http://asmbits.stuffedcow.net ASMBits &amp;mdash; Assembly programming practice]&lt;/div&gt;
Two assembly language problem sets, for Nios II and ARMv7, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_niossim.png|link=http://nios.stuffedcow.net]][http://nios.stuffedcow.net CPU Simulator]&lt;/div&gt;
A simulator and debugger for Nios II and ARMv7 systems, including some I/O devices (excludes MMU). The simulated I/O devices are based on the computer systems used by the Altera University Program. 

Can be used to test and debug assembly language programs without having real hardware.
Debugger is better than real hardware: Has assertions to catch common mistakes, and faster. Simulation speed tends to be slower than hardware, which may limit its use in real-time applications.

&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>34a1e5aadca03a48e73a52e5275b655f24f0dd16</sha1>
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== Welcome ==
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&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site helps you learn the fundamentals of the design of computers&lt;/b&gt;

This site has a collection of tools that are used to help learn some fundamental topics in the design of computer systems: digital logic and assembly language programming.

These tools were originally created to go with several &lt;abbr title="Mainly ECE241, ECE243, ECE253"&gt;second-year computer engineering courses&lt;/abbr&gt; at the University of Toronto. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to encourage doing more practice on short and quick problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net HDLBits &amp;mdash; Verilog practice]&lt;/div&gt;
Verilog problem set, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Asmbits_logo.png|link=http://asmbits.stuffedcow.net]][http://asmbits.stuffedcow.net ASMBits &amp;mdash; Assembly programming practice]&lt;/div&gt;
Two assembly language problem sets, for Nios II and ARMv7, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_niossim.png|link=http://nios.stuffedcow.net]][http://nios.stuffedcow.net CPU Simulator]&lt;/div&gt;
A simulator and debugger for Nios II and ARMv7 systems, including some I/O devices (excludes MMU). The simulated I/O devices are based on the computer systems used by the Altera University Program. 

Can be used to test and debug assembly language programs without having real hardware.
Debugger is better than real hardware: Has assertions to catch common mistakes, and faster. Simulation speed tends to be slower than hardware, which may limit its use in real-time applications.

&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>7049fbcda6571d07748a4add70c3af11702d654b</sha1>
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== Welcome ==
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&lt;style&gt;
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    border: 1px #ccc solid;
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width: 60px;
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&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site helps you learn the fundamentals of the design of computers&lt;/b&gt;

This site has a collection of tools that are used to help learn some fundamental topics in the design of computer systems: digital logic and assembly language programming.

These tools were originally created to go with several &lt;abbr title="Mainly ECE241, ECE243, ECE253"&gt;second-year computer engineering courses&lt;/abbr&gt; at the University of Toronto. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to encourage doing more practice on short and quick problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net HDLBits &amp;mdash; Verilog practice]&lt;/div&gt;
This is a set of short Verilog problems, with an online judge to check your solution for correctness. The problems star with a tutorial style that teaches basic Verilog language features. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Asmbits_logo.png|link=http://asmbits.stuffedcow.net]][http://asmbits.stuffedcow.net ASMBits &amp;mdash; Assembly programming practice]&lt;/div&gt;
Two assembly language problem sets, for Nios II and ARMv7, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_niossim.png|link=http://nios.stuffedcow.net]][http://nios.stuffedcow.net CPU Simulator]&lt;/div&gt;
A simulator and debugger for Nios II and ARMv7 systems, including some I/O devices (excludes MMU). The simulated I/O devices are based on the computer systems used by the Altera University Program. 

Can be used to test and debug assembly language programs without having real hardware.
Debugger is better than real hardware: Has assertions to catch common mistakes, and faster. Simulation speed tends to be slower than hardware, which may limit its use in real-time applications.

&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>a26cd6cb346a6141a9d0d01fc04324eac96ab6ee</sha1>
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  <revision>
    <id>28</id>
    <parentid>27</parentid>
    <timestamp>2017-09-05T23:57:06Z</timestamp>
    <contributor>
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      <id>1</id>
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&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
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width: 60px;
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h3 {
  margin-top: 1.4em;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site helps you learn the fundamentals of the design of computers&lt;/b&gt;

This site has a collection of tools that are used to help learn some fundamental topics in the design of computer systems: digital logic and assembly language programming.

These tools were originally created to go with several &lt;abbr title="Mainly ECE241, ECE243, ECE253"&gt;second-year computer engineering courses&lt;/abbr&gt; at the University of Toronto. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to encourage doing more practice on short and quick problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net HDLBits &amp;mdash; Verilog practice]&lt;/div&gt;
HDLBits is a set of short Verilog design problems, with an online judge to check solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Asmbits_logo.png|link=http://asmbits.stuffedcow.net]][http://asmbits.stuffedcow.net ASMBits &amp;mdash; Assembly programming practice]&lt;/div&gt;
Two assembly language problem sets, for Nios II and ARMv7, online judge, in a semi-tutorial style. Start with explanations of language features followed by short exercises in using them, then progress onto increasingly complex designs.

Online judge allows instant feedback on code correctness (but unfortunately not coding style), which allows much more practice than the traditional weekly labs or assignments.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_niossim.png|link=http://nios.stuffedcow.net]][http://nios.stuffedcow.net CPU Simulator]&lt;/div&gt;
A simulator and debugger for Nios II and ARMv7 systems, including some I/O devices (excludes MMU). The simulated I/O devices are based on the computer systems used by the Altera University Program. 

Can be used to test and debug assembly language programs without having real hardware.
Debugger is better than real hardware: Has assertions to catch common mistakes, and faster. Simulation speed tends to be slower than hardware, which may limit its use in real-time applications.

&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>af6289576d5cb8e84ab8c3def325bb43fd9f9a9a</sha1>
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  <revision>
    <id>29</id>
    <parentid>28</parentid>
    <timestamp>2017-09-06T19:06:36Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
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&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
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    border: 1px #ccc solid;
    background: #fcfeff;
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    display: block;
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margin-right: 0.6em;
width: 60px;
height: 42px;
}
h3 {
  margin-top: 1.4em;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site helps you learn the fundamentals of the design of computers&lt;/b&gt;

This site has a collection of tools that are used to help learn some fundamental topics in the design of computer systems: digital logic and assembly language programming.

These tools were originally created to go with several &lt;abbr title="Mainly ECE241, ECE243, ECE253"&gt;second-year computer engineering courses&lt;/abbr&gt; at the University of Toronto. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to encourage doing more practice on short and quick problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net HDLBits &amp;mdash; Verilog practice]&lt;/div&gt;
HDLBits is a set of short Verilog design problems, with an online judge to check solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Asmbits_logo.png|link=http://asmbits.stuffedcow.net]][http://asmbits.stuffedcow.net ASMBits &amp;mdash; Assembly programming practice]&lt;/div&gt;
ASMBits is a set of short assembly language programming problems, in the same style as HDLBits. There are currently two similar sets of problems, one for each instruction set (Nios II and ARMv7).
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_niossim.png|link=http://nios.stuffedcow.net]][http://nios.stuffedcow.net CPU Simulator]&lt;/div&gt;
This is a simulator and debugger for Nios II and ARMv7 systems, including some I/O devices. The simulated I/O devices are based on the computer systems used by the Altera University Program.

The simulator can be used to test and debug assembly language programs without having real hardware. It is complete enough to do most lab assignments that are based on Altera's computer systems. It can also be used with the ASMBits problems. The simulator's debugger includes run-time assertions to catch common mistakes (which hardware cannot do), but simulation speed tends to be slower than hardware.

&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>ba8de7ac1016166abfdf1caa5c76cd7eb5a6a4f3</sha1>
  </revision>
  <revision>
    <id>30</id>
    <parentid>29</parentid>
    <timestamp>2017-09-06T20:32:19Z</timestamp>
    <contributor>
      <username>Henry</username>
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&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
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width: 60px;
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  margin-top: 1.4em;
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&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site helps you learn the fundamentals of the design of computers&lt;/b&gt;

This site has a collection of tools that are used to help learn some fundamental topics in the design of computer systems: digital logic and assembly language programming.

These tools were originally created to go with several &lt;abbr title="Mainly ECE241, ECE243, ECE253"&gt;second-year computer engineering courses&lt;/abbr&gt; at the University of Toronto. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to encourage doing more practice on short and quick problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net HDLBits &amp;mdash; Verilog practice]&lt;/div&gt;
HDLBits is a set of short Verilog design problems, with an online judge to check solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Asmbits_logo.png|link=http://asmbits.stuffedcow.net]][http://asmbits.stuffedcow.net ASMBits &amp;mdash; Assembly programming practice]&lt;/div&gt;
ASMBits is a set of short assembly language programming problems, in the same style as HDLBits. There are currently two similar sets of problems, one for each instruction set (Nios II and ARMv7).
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_niossim.png|link=http://nios.stuffedcow.net]][http://nios.stuffedcow.net CPU Simulator]&lt;/div&gt;
This is a simulator and debugger for Nios II and ARMv7 systems, including some I/O devices. The simulated I/O devices are based on the computer systems used by the Altera University Program.

The simulator can be used to test and debug assembly language programs without having real hardware. It is complete enough to do most lab assignments that are based on Altera's computer systems. It can also be used with the ASMBits problems. The simulator's debugger includes run-time assertions to catch common mistakes (which hardware cannot do), but simulation speed tends to be slower than hardware.

&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
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  <revision>
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    <parentid>30</parentid>
    <timestamp>2017-09-07T04:18:31Z</timestamp>
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&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
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    border: 1px #ccc solid;
    background: #f8fcff;
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width: 60px;
height: 42px;
}
h3 {
  margin-top: 1.4em;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site helps you learn the fundamentals of the design of computers&lt;/b&gt;

This site has a collection of tools that are used to help learn some fundamental topics in the design of computer systems: digital logic and assembly language programming.

These tools were originally created to go with several &lt;abbr title="Mainly ECE241, ECE243, ECE253"&gt;second-year undergraduate computer engineering courses&lt;/abbr&gt; at the University of Toronto. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to encourage doing more practice on short and quick problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net HDLBits &amp;mdash; Verilog practice]&lt;/div&gt;
HDLBits is a set of short Verilog design problems, with an online judge to check solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Asmbits_logo.png|link=http://asmbits.stuffedcow.net]][http://asmbits.stuffedcow.net ASMBits &amp;mdash; Assembly programming practice]&lt;/div&gt;
ASMBits is a set of short assembly language programming problems, in the same style as HDLBits. There are currently two similar sets of problems, one for each instruction set (Nios II and ARMv7).
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_niossim.png|link=http://nios.stuffedcow.net]][http://nios.stuffedcow.net CPU Simulator]&lt;/div&gt;
This is a simulator and debugger for Nios II and ARMv7 systems, including some I/O devices. The simulated I/O devices are based on the computer systems used by the Altera University Program.

The simulator can be used to test and debug assembly language programs without having real hardware. It is complete enough to do most lab assignments that are based on Altera's computer systems. It can also be used with the ASMBits problems. The simulator's debugger includes run-time assertions to catch common mistakes (which hardware cannot do), but simulation speed tends to be slower than hardware.

&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>491e223651115dd2c38e91950b2fda6e98187a3e</sha1>
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  <revision>
    <id>34</id>
    <parentid>33</parentid>
    <timestamp>2017-09-07T18:13:24Z</timestamp>
    <contributor>
      <username>Henry</username>
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&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
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h3 {
  margin-top: 1.4em;
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&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site helps you learn the fundamentals of the design of computers&lt;/b&gt;

This site has a collection of tools that are used to help learn some fundamental topics in the design of computer systems: digital logic and assembly language programming.

These tools were originally created to go with several &lt;abbr title="Mainly ECE241, ECE243, ECE253"&gt;second-year undergraduate computer engineering courses&lt;/abbr&gt; at the University of Toronto. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net HDLBits &amp;mdash; Verilog practice]&lt;/div&gt;
HDLBits is a set of short Verilog design problems, with an online judge to check solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Asmbits_logo.png|link=http://asmbits.stuffedcow.net]][http://asmbits.stuffedcow.net ASMBits &amp;mdash; Assembly programming practice]&lt;/div&gt;
ASMBits is a set of short assembly language programming problems, in the same style as HDLBits. There are currently two similar sets of problems, one for each instruction set (Nios II and ARMv7).
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_niossim.png|link=http://nios.stuffedcow.net]][http://nios.stuffedcow.net CPU Simulator]&lt;/div&gt;
This is a simulator and debugger for Nios II and ARMv7 systems, including some I/O devices. The simulated I/O devices are based on the computer systems used by the Altera University Program.

The simulator can be used to test and debug assembly language programs without having real hardware. It is complete enough to do most lab assignments that are based on Altera's computer systems. It can also be used with the ASMBits problems. The simulator's debugger includes run-time assertions to catch common mistakes (which hardware cannot do), but simulation speed tends to be slower than hardware.

&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>f22f2c83c672f73847f815acf7d58f237bea9751</sha1>
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  <revision>
    <id>35</id>
    <parentid>34</parentid>
    <timestamp>2017-09-07T19:44:48Z</timestamp>
    <contributor>
      <username>Henry</username>
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&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
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    border: 1px #ccc solid;
    background: #f8fcff;
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margin-right: 0.6em;
width: 60px;
height: 42px;
}
h3 {
  margin-top: 1.4em;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

This site has a collection of tools that are used to help learn some fundamental topics in the design of computer systems: digital logic and assembly language programming.

These tools were originally created to go with several &lt;abbr title="Mainly ECE241, ECE243, ECE253"&gt;second-year undergraduate computer engineering courses&lt;/abbr&gt; at the University of Toronto. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net HDLBits &amp;mdash; Verilog practice]&lt;/div&gt;
HDLBits is a set of short Verilog design problems, with an online judge to check solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Asmbits_logo.png|link=http://asmbits.stuffedcow.net]][http://asmbits.stuffedcow.net ASMBits &amp;mdash; Assembly programming practice]&lt;/div&gt;
ASMBits is a set of short assembly language programming problems, in the same style as HDLBits. There are currently two similar sets of problems, one for each instruction set (Nios II and ARMv7).
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_niossim.png|link=http://nios.stuffedcow.net]][http://nios.stuffedcow.net CPU Simulator]&lt;/div&gt;
This is a simulator and debugger for Nios II and ARMv7 systems, including some I/O devices. The simulated I/O devices are based on the computer systems used by the Altera University Program.

The simulator can be used to test and debug assembly language programs without having real hardware. It is complete enough to do most lab assignments that are based on Altera's computer systems. It can also be used with the ASMBits problems. The simulator's debugger includes run-time assertions to catch common mistakes (which hardware cannot do), but simulation speed tends to be slower than hardware.

&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>e7e132007d0c6e152371f24698c521bea2f2c524</sha1>
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  <revision>
    <id>36</id>
    <parentid>35</parentid>
    <timestamp>2017-09-07T23:06:08Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
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&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.5em;
    display: block;
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margin-right: 0.6em;
width: 60px;
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}
h3 {
  margin-top: 1.4em;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

This site has a collection of tools that are used to help learn some fundamental topics in the design of computer systems: digital logic and assembly language programming.

These tools were originally created to go with several &lt;abbr title="Mainly ECE241, ECE243, ECE253"&gt;second-year undergraduate computer engineering courses&lt;/abbr&gt; at the University of Toronto. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net HDLBits &amp;mdash; Verilog practice]&lt;/div&gt;
HDLBits is a set of short Verilog design problems. &lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;"&gt;[Show more]&lt;/a&gt;&lt;/html&gt;
&lt;div id="panel1_more" style="display:none;"&gt;An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Asmbits_logo.png|link=http://asmbits.stuffedcow.net]][http://asmbits.stuffedcow.net ASMBits &amp;mdash; Assembly programming practice]&lt;/div&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits. 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_niossim.png|link=http://nios.stuffedcow.net]][http://nios.stuffedcow.net CPU Simulator]&lt;/div&gt;
This is a simulator and debugger for Nios II and ARMv7 systems. &lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;"&gt;[Show more]&lt;/a&gt;&lt;/html&gt;

&lt;div id="panel3_more" style="display:none;"&gt;The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.

The simulator can be used to test and debug assembly language programs without having real hardware. It is complete enough to do most lab assignments that are based on Altera's computer systems. It can also be used with the ASMBits problems. The simulator's debugger includes run-time assertions to catch common mistakes (which hardware cannot do), but simulation speed tends to be slower than hardware.
&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>d8f1b819cf3c8b0b669d952a35a05f383cc5ef28</sha1>
  </revision>
  <revision>
    <id>37</id>
    <parentid>36</parentid>
    <timestamp>2017-09-07T23:26:59Z</timestamp>
    <contributor>
      <username>Henry</username>
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&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.5em;
    display: block;
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margin-right: 0.6em;
width: 60px;
height: 42px;
}
h3 {
  margin-top: 1.4em;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

These tools were originally created to complement several second-year undergraduate computer engineering &lt;abbr title="ECE241, ECE243, ECE253"&gt;courses&lt;/abbr&gt; at the University of Toronto, and have since been used by other similar courses. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these tools useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net HDLBits &amp;mdash; Verilog practice]&lt;/div&gt;
HDLBits is a set of short Verilog design problems. &lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;"&gt;[Show more]&lt;/a&gt;&lt;/html&gt;
&lt;div id="panel1_more" style="display:none;"&gt;An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Asmbits_logo.png|link=http://asmbits.stuffedcow.net]][http://asmbits.stuffedcow.net ASMBits &amp;mdash; Assembly programming practice]&lt;/div&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits. 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_niossim.png|link=http://nios.stuffedcow.net]][http://nios.stuffedcow.net CPU Simulator]&lt;/div&gt;
This is a simulator and debugger for Nios II and ARMv7 systems. &lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;"&gt;[Show more]&lt;/a&gt;&lt;/html&gt;

&lt;div id="panel3_more" style="display:none;"&gt;The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.

The simulator can be used to test and debug assembly language programs without having real hardware. It is complete enough to do most lab assignments that are based on Altera's computer systems. It can also be used with the ASMBits problems. The simulator's debugger includes run-time assertions to catch common mistakes (which hardware cannot do), but simulation speed tends to be slower than hardware.
&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>4c5e27c6d0e0de9fcf753e5cd91695955c48a86d</sha1>
  </revision>
  <revision>
    <id>41</id>
    <parentid>37</parentid>
    <timestamp>2017-09-15T22:48:03Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
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    <model>wikitext</model>
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&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
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width: 60px;
height: 42px;
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h3 {
  margin-top: 1.4em;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

These tools were originally created to complement several second-year undergraduate computer engineering &lt;abbr title="ECE241, ECE243, ECE253"&gt;courses&lt;/abbr&gt; at the University of Toronto, and have since been used by other similar courses. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these tools useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=http://verilog.stuffedcow.net]][http://verilog.stuffedcow.net HDLBits]&lt;/div&gt;
HDLBits is a set of short Verilog design problems. &lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;"&gt;[Show more]&lt;/a&gt;&lt;/html&gt;
&lt;div id="panel1_more" style="display:none;"&gt;An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Asmbits_logo.png|link=http://asmbits.stuffedcow.net]][http://asmbits.stuffedcow.net ASMBits]&lt;/div&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits. 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_niossim.png|link=http://nios.stuffedcow.net]][http://cpulator.01xz.net CPUlator]&lt;/div&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. &lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;"&gt;[Show more]&lt;/a&gt;&lt;/html&gt;

&lt;div id="panel3_more" style="display:none;"&gt;The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.

The simulator can be used to test and debug assembly language programs without having real hardware. It is complete enough to do most lab assignments that are based on Altera's computer systems. It can also be used with the ASMBits problems. The simulator's debugger includes run-time assertions to catch common mistakes (which hardware cannot do), but simulation speed tends to be slower than hardware.
&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>4c0617b1e41acd5b8fe7d92b8a8b2a8dedd0c141</sha1>
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  <revision>
    <id>42</id>
    <parentid>41</parentid>
    <timestamp>2017-09-16T01:25:03Z</timestamp>
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      <username>Henry</username>
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&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.5em;
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margin-right: 0.6em;
width: 60px;
height: 42px;
}
h3 {
  margin-top: 1.4em;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

These tools were originally created to complement several second-year undergraduate computer engineering &lt;abbr title="ECE241, ECE243, ECE253"&gt;courses&lt;/abbr&gt; at the University of Toronto, and have since been used by other similar courses. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these tools useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=http://hdlbits.01xz.net]][http://hdlbits.01xz.net HDLBits]&lt;/div&gt;
HDLBits is a set of short Verilog design problems. &lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;"&gt;[Show more]&lt;/a&gt;&lt;/html&gt;
&lt;div id="panel1_more" style="display:none;"&gt;An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Asmbits_logo.png|link=http://asmbits.01xz.net]][http://asmbits.01xz.net ASMBits]&lt;/div&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits. 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_niossim.png|link=http://cpulator.01xz.net]][http://cpulator.01xz.net CPUlator]&lt;/div&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. &lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;"&gt;[Show more]&lt;/a&gt;&lt;/html&gt;

&lt;div id="panel3_more" style="display:none;"&gt;The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.

The simulator can be used to test and debug assembly language programs without having real hardware. It is complete enough to do most lab assignments that are based on Altera's computer systems. It can also be used with the ASMBits problems. The simulator's debugger includes run-time assertions to catch common mistakes (which hardware cannot do), but simulation speed tends to be slower than hardware.
&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>0591f1dedcdd3995034b48e130dd0048e62c0464</sha1>
  </revision>
  <revision>
    <id>45</id>
    <parentid>42</parentid>
    <timestamp>2017-09-22T08:36:45Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
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&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
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    border: 1px #ccc solid;
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margin-right: 0.6em;
width: 60px;
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h3 {
  margin-top: 1.4em;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

These tools were originally created to complement several second-year undergraduate computer engineering &lt;abbr title="ECE241, ECE243, ECE253"&gt;courses&lt;/abbr&gt; at the University of Toronto, and have since been used by other similar courses. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these tools useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
HDLBits is a set of short Verilog design problems. &lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;"&gt;[Show more]&lt;/a&gt;&lt;/html&gt;
&lt;div id="panel1_more" style="display:none;"&gt;An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Asmbits_logo.png|link=/asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits. 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator]&lt;/div&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. &lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;"&gt;[Show more]&lt;/a&gt;&lt;/html&gt;

&lt;div id="panel3_more" style="display:none;"&gt;The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.

The simulator can be used to test and debug assembly language programs without having real hardware. It is complete enough to do most lab assignments that are based on Altera's computer systems. It can also be used with the ASMBits problems. The simulator's debugger includes run-time assertions to catch common mistakes (which hardware cannot do), but simulation speed tends to be slower than hardware.
&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>9097bb5fac3f62691d981624963233e15a79c11d</sha1>
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  <revision>
    <id>46</id>
    <parentid>45</parentid>
    <timestamp>2017-09-24T19:34:35Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <comment>/* What's here? */</comment>
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&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.5em;
    display: block;
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display:block;
float:left;
margin-right: 0.6em;
width: 60px;
height: 42px;
}
h3 {
  margin-top: 1.4em;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

These tools were originally created to complement several second-year undergraduate computer engineering &lt;abbr title="ECE241, ECE243, ECE253"&gt;courses&lt;/abbr&gt; at the University of Toronto, and have since been used by other similar courses. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these tools useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
HDLBits is a set of short Verilog design problems. &lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;"&gt;[Show more]&lt;/a&gt;&lt;/html&gt;
&lt;div id="panel1_more" style="display:none;"&gt;An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Asmbits_logo.png|link=/asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits. 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. &lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;"&gt;[Show more]&lt;/a&gt;&lt;/html&gt;

&lt;div id="panel3_more" style="display:none;"&gt;The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.

The simulator can be used to test and debug assembly language programs without having real hardware. It is complete enough to do most lab assignments that are based on Altera's computer systems. It can also be used with the ASMBits problems. The simulator's debugger includes run-time assertions to catch common mistakes (which hardware cannot do), but simulation speed tends to be slower than hardware.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/?sys=arm]][//cpulator.01xz.net/?sys=arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>2ebf52ff684abfcc27c4b0e5e726a20ff02caccc</sha1>
  </revision>
  <revision>
    <id>47</id>
    <parentid>46</parentid>
    <timestamp>2017-09-24T19:45:09Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <comment>/* What's here? */</comment>
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    <text bytes="3763" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.5em;
    display: block;
}
div.panel a {
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}
div.panel a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
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    font-weight: bold;
    display:block;
}
div.panel img { 
display:block;
float:left;
margin-right: 0.6em;
width: 60px;
height: 42px;
}
h3 {
  margin-top: 1.4em;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

These tools were originally created to complement several second-year undergraduate computer engineering &lt;abbr title="ECE241, ECE243, ECE253"&gt;courses&lt;/abbr&gt; at the University of Toronto, and have since been used by other similar courses. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these tools useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;[+]&lt;/a&gt;&lt;/html&gt;&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Asmbits_logo.png|link=/asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits. 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. &lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;"&gt;[Show more]&lt;/a&gt;&lt;/html&gt;

&lt;div id="panel3_more" style="display:none;"&gt;The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.

The simulator can be used to test and debug assembly language programs without having real hardware. It is complete enough to do most lab assignments that are based on Altera's computer systems. It can also be used with the ASMBits problems. The simulator's debugger includes run-time assertions to catch common mistakes (which hardware cannot do), but simulation speed tends to be slower than hardware.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/?sys=arm]][//cpulator.01xz.net/?sys=arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>4a6832725bf70a501b596e1559122a3ed9420d92</sha1>
  </revision>
  <revision>
    <id>48</id>
    <parentid>47</parentid>
    <timestamp>2017-09-24T20:01:54Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <comment>/* Welcome */</comment>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="4486" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.5em;
    display: block;
}
div.panel a {
    color: #000;
}
div.panel a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
}
div.panel img { 
display:block;
float:left;
margin-right: 0.6em;
width: 60px;
height: 42px;
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h3 {
  margin-top: 1.4em;
}
div.panel a.plus {
  float:right;
  font-size:36px;
  line-height:42px;
  color: #00f;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

These tools were originally created to complement several second-year undergraduate computer engineering &lt;abbr title="ECE241, ECE243, ECE253"&gt;courses&lt;/abbr&gt; at the University of Toronto, and have since been used by other similar courses. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these tools useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Asmbits_logo.png|link=/asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.

The simulator can be used to test and debug assembly language programs without having real hardware. It is complete enough to do most lab assignments that are based on Altera's computer systems. It can also be used with the ASMBits problems. The simulator's debugger includes run-time assertions to catch common mistakes (which hardware cannot do), but simulation speed tends to be slower than hardware.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/?sys=arm]][//cpulator.01xz.net/?sys=arm CPUlator &amp;mdash; ARMv7]&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.&lt;div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>9320e84529804e675aa057fbf00a703cdd953d89</sha1>
  </revision>
  <revision>
    <id>49</id>
    <parentid>48</parentid>
    <timestamp>2017-09-24T20:10:56Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <comment>/* Welcome */</comment>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="4512" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.5em;
    display: block;
}
div.panel a {
    color: #000;
}
div.panel a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
}
div.panel img { 
display:block;
float:left;
margin-right: 0.6em;
width: 60px;
height: 42px;
}
h3 {
  margin-top: 1.4em;
}
div.panel a.plus {
  display: inline-block;
  float: right;
  font-size:36px;
  line-height:42px;
  color: #00f;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

These tools were originally created to complement several second-year undergraduate computer engineering &lt;abbr title="ECE241, ECE243, ECE253"&gt;courses&lt;/abbr&gt; at the University of Toronto, and have since been used by other similar courses. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these tools useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=/asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.

The simulator can be used to test and debug assembly language programs without having real hardware. It is complete enough to do most lab assignments that are based on Altera's computer systems. It can also be used with the ASMBits problems. The simulator's debugger includes run-time assertions to catch common mistakes (which hardware cannot do), but simulation speed tends to be slower than hardware.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/?sys=arm]][//cpulator.01xz.net/?sys=arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.&lt;div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>8b0820054aee80f6257f55051aa4f27bf17e1f93</sha1>
  </revision>
  <revision>
    <id>50</id>
    <parentid>49</parentid>
    <timestamp>2017-09-24T20:17:00Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <comment>/* Welcome */</comment>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="4512" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.5em;
    display: block;
}
div.panel a {
    color: #000;
}
div.panel a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
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    font-weight: bold;
    display:block;
}
div.panel img { 
display:block;
float:left;
margin-right: 0.6em;
width: 60px;
height: 42px;
}
h3 {
  margin-top: 1.4em;
}
div.panel a.plus {
  display: inline-block;
  float: right;
  font-size:36px;
  line-height:42px;
  color: #aaa;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

These tools were originally created to complement several second-year undergraduate computer engineering &lt;abbr title="ECE241, ECE243, ECE253"&gt;courses&lt;/abbr&gt; at the University of Toronto, and have since been used by other similar courses. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these tools useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=/asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.

The simulator can be used to test and debug assembly language programs without having real hardware. It is complete enough to do most lab assignments that are based on Altera's computer systems. It can also be used with the ASMBits problems. The simulator's debugger includes run-time assertions to catch common mistakes (which hardware cannot do), but simulation speed tends to be slower than hardware.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/?sys=arm]][//cpulator.01xz.net/?sys=arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.&lt;div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>5f587c66b84801271df9e3fa2ef18b525c2169e0</sha1>
  </revision>
  <revision>
    <id>51</id>
    <parentid>50</parentid>
    <timestamp>2017-09-24T20:27:34Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="4513" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.5em;
    display: block;
}
div.panel a {
    color: #000;
}
div.panel a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
}
div.panel img { 
display:block;
float:left;
margin-right: 0.6em;
width: 60px;
height: 42px;
}
h3 {
  margin-top: 1.4em;
}
div.panel a.plus {
  display: inline-block;
  float: right;
  font-size:36px;
  line-height:42px;
  color: #aaa;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

These tools were originally created to complement several second-year undergraduate computer engineering &lt;abbr title="ECE241, ECE243, ECE253"&gt;courses&lt;/abbr&gt; at the University of Toronto, and have since been used by other similar courses. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these tools useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=/asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.

The simulator can be used to test and debug assembly language programs without having real hardware. It is complete enough to do most lab assignments that are based on Altera's computer systems. It can also be used with the ASMBits problems. The simulator's debugger includes run-time assertions to catch common mistakes (which hardware cannot do), but simulation speed tends to be slower than hardware.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/?sys=arm]][//cpulator.01xz.net/?sys=arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>8f736422c586e25476ac71ffc6aceef59e2aa428</sha1>
  </revision>
  <revision>
    <id>52</id>
    <parentid>51</parentid>
    <timestamp>2017-09-24T20:33:31Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="4520" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.5em;
    display: block;
}
div.panel a {
    color: #000;
}
div.panel a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
}
div.panel img { 
display:block;
float:left;
margin: 10px 0.5em 11px 0;
width: 30px;
height: 21px;

}
h3 {
  margin-top: 1.4em;
}
div.panel a.plus {
  display: inline-block;
  float: right;
  font-size:36px;
  line-height:42px;
  color: #aaa;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

These tools were originally created to complement several second-year undergraduate computer engineering &lt;abbr title="ECE241, ECE243, ECE253"&gt;courses&lt;/abbr&gt; at the University of Toronto, and have since been used by other similar courses. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these tools useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=/asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.

The simulator can be used to test and debug assembly language programs without having real hardware. It is complete enough to do most lab assignments that are based on Altera's computer systems. It can also be used with the ASMBits problems. The simulator's debugger includes run-time assertions to catch common mistakes (which hardware cannot do), but simulation speed tends to be slower than hardware.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/?sys=arm]][//cpulator.01xz.net/?sys=arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>64e0230cf3b5bb43126eaa6008e63a7e84b11930</sha1>
  </revision>
  <revision>
    <id>53</id>
    <parentid>52</parentid>
    <timestamp>2017-09-24T20:35:43Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="4536" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
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&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

These tools were originally created to complement several second-year undergraduate computer engineering &lt;abbr title="ECE241, ECE243, ECE253"&gt;courses&lt;/abbr&gt; at the University of Toronto, and have since been used by other similar courses. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these tools useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=/asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.

The simulator can be used to test and debug assembly language programs without having real hardware. It is complete enough to do most lab assignments that are based on Altera's computer systems. It can also be used with the ASMBits problems. The simulator's debugger includes run-time assertions to catch common mistakes (which hardware cannot do), but simulation speed tends to be slower than hardware.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/?sys=arm]][//cpulator.01xz.net/?sys=arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
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    <comment>Created page with " * navigation ** mainpage|mainpage-description ** recentchanges-url|recentchanges ** randompage-url|randompage ** helppage|help * TOOLBOX * LANGUAGES"</comment>
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* navigation
** mainpage|mainpage-description
** recentchanges-url|recentchanges
** randompage-url|randompage
** helppage|help
* TOOLBOX
* LANGUAGES</text>
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  <revision>
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    <contributor>
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    <text bytes="193" xml:space="preserve">* Projects
** http://verilog.stuffedcow.net|Verilog Problem Set
** http://asmbits.stuffedcow.net|Nios II and ARMv7 Assembly Problem Set
** http://nios.stuffedcow.net|Nios II and ARMv7 Simulator</text>
    <sha1>a77b2c2566298842b18ccf5d80f8e872d3c8c971</sha1>
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  <revision>
    <id>31</id>
    <parentid>5</parentid>
    <timestamp>2017-09-06T21:54:34Z</timestamp>
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    <text bytes="184" xml:space="preserve">* Projects
** http://verilog.stuffedcow.net|Verilog Problem Set
** http://asmbits.stuffedcow.net|Assembly Language Problem Set
** http://nios.stuffedcow.net|Nios II and ARMv7 Simulator</text>
    <sha1>c9c1984f305a9fa473a2b34ec44ad75146a98c77</sha1>
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  <revision>
    <id>43</id>
    <parentid>31</parentid>
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    <contributor>
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      <id>1</id>
    </contributor>
    <model>wikitext</model>
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    <text bytes="195" xml:space="preserve">* Projects
** http://hdlbits.01xz.net|HDLBits Verilog Problem Set
** http://asmbits.01xz.net|ASMBits Assembly Language Problem Set
** http://cpulator.01xz.net|CPUlator Nios II and ARMv7 Simulator</text>
    <sha1>adaa8945444ad7c0942ddfb90a6673e8a386b805</sha1>
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  <revision>
    <id>44</id>
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    <timestamp>2017-09-20T05:27:14Z</timestamp>
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    <model>wikitext</model>
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    <text bytes="188" xml:space="preserve">* Projects
** http://hdlbits.01xz.net|HDLBits Verilog Problem Set
** http://asmbits.01xz.net|ASMBits Nios/ARMv7 Problem Set
** http://cpulator.01xz.net|CPUlator Nios II and ARMv7 Simulator</text>
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    <comment>Henry uploaded a new version of [[File:Asmbits logo.png]]</comment>
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    <timestamp>2017-09-11T02:24:02Z</timestamp>
    <contributor>
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    <comment>Created page with "== What's with the name? == The name &lt;b&gt;01xz.net&lt;/b&gt; is named after the four logic values used by nets (and variables) in Verilog: '''0''', '''1''', '''x''' (unknown/don't-car..."</comment>
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    <text bytes="313" xml:space="preserve">== What's with the name? ==
The name &lt;b&gt;01xz.net&lt;/b&gt; is named after the four logic values used by nets (and variables) in Verilog: '''0''', '''1''', '''x''' (unknown/don't-care), and '''z''' (high impedance). SystemVerilog added two-state (0 and 1) variables to the language, but nets are still always four-state.</text>
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    <text bytes="312" xml:space="preserve">== What's with the name? ==
The name &lt;b&gt;01xz.net&lt;/b&gt; is named after the four-state logic used by nets (and variables) in Verilog: '''0''', '''1''', '''x''' (unknown/don't-care), and '''z''' (high impedance). SystemVerilog added two-state (0 and 1) variables to the language, but nets are still always four-state.</text>
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    <text bytes="314" xml:space="preserve">=== What's with the name? ===
The name &lt;b&gt;01xz.net&lt;/b&gt; is named after the four-state logic used by nets (and variables) in Verilog: '''0''', '''1''', '''x''' (unknown/don't-care), and '''z''' (high impedance). SystemVerilog added two-state (0 and 1) variables to the language, but nets are still always four-state.</text>
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<page arvcontinue="20170924204057|54">
  <title>MediaWiki:Sidebar</title>
  <ns>8</ns>
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  <revision>
    <id>54</id>
    <parentid>44</parentid>
    <timestamp>2017-09-24T20:40:57Z</timestamp>
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      <id>1</id>
    </contributor>
    <model>wikitext</model>
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    <text bytes="240" xml:space="preserve">* Projects
** http://hdlbits.01xz.net|HDLBits Verilog Problem Set
** http://asmbits.01xz.net|ASMBits Nios/ARMv7 Problem Set
** http://cpulator.01xz.net|CPUlator Nios II Simulator
** http://cpulator.01xz.net/?sys=arm|CPUlator ARMv7 Simulator</text>
    <sha1>5c1ace221b78f82c9fadb85a16187200486b2e7e</sha1>
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  <revision>
    <id>57</id>
    <parentid>54</parentid>
    <timestamp>2017-09-28T07:33:22Z</timestamp>
    <contributor>
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      <id>1</id>
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    <model>wikitext</model>
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    <text bytes="235" xml:space="preserve">* Projects
** //hdlbits.01xz.net|HDLBits Verilog Problem Set
** http://asmbits.01xz.net|ASMBits Nios/ARMv7 Problem Set
** http://cpulator.01xz.net|CPUlator Nios II Simulator
** http://cpulator.01xz.net/?sys=arm|CPUlator ARMv7 Simulator</text>
    <sha1>549940428fe977aa02badc8745c7df072b359cc0</sha1>
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  <revision>
    <id>58</id>
    <parentid>57</parentid>
    <timestamp>2017-09-28T07:34:21Z</timestamp>
    <contributor>
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      <id>1</id>
    </contributor>
    <model>wikitext</model>
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    <text bytes="244" xml:space="preserve">* Projects
** https://hdlbits.01xz.net|HDLBits Verilog Problem Set
** https://asmbits.01xz.net|ASMBits Nios/ARMv7 Problem Set
** https://cpulator.01xz.net|CPUlator Nios II Simulator
** https://cpulator.01xz.net/?sys=arm|CPUlator ARMv7 Simulator</text>
    <sha1>4b40bc9b828de79a3782ff80935096a35cac0a85</sha1>
  </revision>
  <revision>
    <id>60</id>
    <parentid>58</parentid>
    <timestamp>2017-10-03T21:16:45Z</timestamp>
    <contributor>
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      <id>1</id>
    </contributor>
    <model>wikitext</model>
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    <text bytes="259" xml:space="preserve">* Projects
** https://hdlbits.01xz.net/|HDLBits — Verilog practice
** https://asmbits.01xz.net/|ASMBits — Assembly language practice
** https://cpulator.01xz.net/|CPUlator — Nios II simulator
** https://cpulator.01xz.net/arm|CPUlator — ARMv7 simulator</text>
    <sha1>5c9ca1d62bb8cf6413a342dee4ec7765b6ffc78c</sha1>
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  <revision>
    <id>72</id>
    <parentid>60</parentid>
    <timestamp>2017-11-14T21:29:53Z</timestamp>
    <contributor>
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      <id>1</id>
    </contributor>
    <model>wikitext</model>
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    <text bytes="294" xml:space="preserve">* Projects
** https://hdlbits.01xz.net/|HDLBits — Verilog practice
** https://asmbits.01xz.net/|ASMBits — Assembly language practice
** https://cpulator.01xz.net/|CPUlator — Nios II simulator
** https://cpulator.01xz.net/arm|CPUlator — ARMv7 simulator
* About
** [[Project:About|About]]</text>
    <sha1>e365df3fd8f755239deb06441d6b64625e159ffe</sha1>
  </revision>
  <revision>
    <id>73</id>
    <parentid>72</parentid>
    <timestamp>2017-11-14T21:33:11Z</timestamp>
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    </contributor>
    <model>wikitext</model>
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    <text bytes="294" xml:space="preserve">* Projects
** https://hdlbits.01xz.net/|HDLBits — Verilog practice
** https://asmbits.01xz.net/|ASMBits — Assembly language practice
** https://cpulator.01xz.net/|CPUlator — Nios II simulator
** https://cpulator.01xz.net/arm|CPUlator — ARMv7 simulator
* About
** [[Project:About]]|About</text>
    <sha1>2e852917d56ad85344d36523e9d747f73b907086</sha1>
  </revision>
  <revision>
    <id>74</id>
    <parentid>73</parentid>
    <timestamp>2017-11-14T21:33:22Z</timestamp>
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      <id>1</id>
    </contributor>
    <model>wikitext</model>
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    <text bytes="290" xml:space="preserve">* Projects
** https://hdlbits.01xz.net/|HDLBits — Verilog practice
** https://asmbits.01xz.net/|ASMBits — Assembly language practice
** https://cpulator.01xz.net/|CPUlator — Nios II simulator
** https://cpulator.01xz.net/arm|CPUlator — ARMv7 simulator
* About
** Project:About|About</text>
    <sha1>f5b2b0e2f2ba4c3a444ca52b5ee89e431807e80c</sha1>
  </revision>
</page>
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  <title>Main Page</title>
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  <revision>
    <id>55</id>
    <parentid>53</parentid>
    <timestamp>2017-09-25T04:41:19Z</timestamp>
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    <text bytes="4540" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
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div.panel a {
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div.panel a:hover {
    color: #2ba6cb;
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div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
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}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
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div.panel a.plus {
  display: inline-block;
  float: right;
  font-size:36px;
  line-height:42px;
  color: #aaa;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

These tools were originally created to complement several second-year undergraduate computer engineering &lt;abbr title="ECE241, ECE243, ECE253"&gt;courses&lt;/abbr&gt; at the University of Toronto, and have since been used by other similar courses. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these tools useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=/asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.

The simulator can be used to test and debug assembly language programs without having real hardware. It is complete enough to do most lab assignments that are based on Altera's computer systems. It can also be used with the ASMBits problems. The simulator's debugger includes run-time assertions to catch common mistakes (which hardware cannot do), but simulation speed tends to be slower than hardware.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/?sys=arm]][//cpulator.01xz.net/?sys=arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>66ece6aed69c8f31d86154da0819d2f690ac45ab</sha1>
  </revision>
  <revision>
    <id>56</id>
    <parentid>55</parentid>
    <timestamp>2017-09-25T04:42:25Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <comment>/* Welcome */</comment>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="4542" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel a {
    color: #000;
}
div.panel a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel a.plus {
  display: inline-block;
  float: right;
  font-size:36px;
  line-height:42px;
  color: #aaa;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

These tools were originally created to complement several second-year undergraduate computer engineering &lt;abbr title="ECE241, ECE243, ECE253"&gt;courses&lt;/abbr&gt; at the University of Toronto, and have since been used by other similar courses. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these tools useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=/asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.

The simulator can be used to test and debug assembly language programs without having real hardware. It is complete enough to do most lab assignments that are based on Altera's computer systems. It can also be used with the ASMBits problems. The simulator's debugger includes run-time assertions to catch common mistakes (which hardware cannot do), but simulation speed tends to be slower than hardware.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/?sys=arm]][//cpulator.01xz.net/?sys=arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.
&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>fb5e54cd59bc78f3f3105deee392476906598497</sha1>
  </revision>
  <revision>
    <id>59</id>
    <parentid>56</parentid>
    <timestamp>2017-09-29T22:04:57Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="4532" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel a {
    color: #000;
}
div.panel a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel a.plus {
  display: inline-block;
  float: right;
  font-size:36px;
  line-height:42px;
  color: #aaa;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

These tools were originally created to complement several second-year undergraduate computer engineering &lt;abbr title="ECE241, ECE243, ECE253"&gt;courses&lt;/abbr&gt; at the University of Toronto, and have since been used by other similar courses. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these tools useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=/asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.

The simulator can be used to test and debug assembly language programs without having real hardware. It is complete enough to do most lab assignments that are based on Altera's computer systems. It can also be used with the ASMBits problems. The simulator's debugger includes run-time assertions to catch common mistakes (which hardware cannot do), but simulation speed tends to be slower than hardware.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/arm]][//cpulator.01xz.net/arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.
&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>dba17cadc76bb0cba596f0fe65892d934bfc2993</sha1>
  </revision>
  <revision>
    <id>61</id>
    <parentid>59</parentid>
    <timestamp>2017-11-12T00:10:22Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="4541" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel a {
    color: #000;
}
div.panel a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel a.plus {
  display: inline-block;
  float: right;
  font-size:36px;
  line-height:42px;
  color: #aaa;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

These tools were originally created to complement several second-year undergraduate computer engineering &lt;abbr title="ECE241, ECE243, ECE253"&gt;courses&lt;/abbr&gt; at the University of Toronto, and have since been used by other similar courses. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these tools useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=/asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and perhaps used for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The debugger includes run-time assertions to catch common mistakes (which hardware cannot do).
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/arm]][//cpulator.01xz.net/arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.
&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>c4d0123823a06f833e3d3f9c0519f87ef84ac57c</sha1>
  </revision>
  <revision>
    <id>62</id>
    <parentid>61</parentid>
    <timestamp>2017-11-12T01:01:45Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="6203" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel a {
    color: #000;
}
div.panel a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel a.plus {
  display: inline-block;
  float: right;
  font-size:36px;
  line-height:42px;
  color: #aaa;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

These tools were originally created to complement several second-year undergraduate computer engineering &lt;abbr title="ECE241, ECE243, ECE253"&gt;courses&lt;/abbr&gt; at the University of Toronto, and have since been used by other similar courses. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these tools useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=/asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and perhaps used for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The debugger includes run-time assertions to catch common mistakes (which hardware cannot do).
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/arm]][//cpulator.01xz.net/arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.
&lt;/div&gt;
&lt;/div&gt;

=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;Students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Practice the basics first so that you become quick and accurate at the simple things.
* '''Assembly coding assignments''': The CPUlator simulator is a nearly-complete simulation of a Nios and ARMv7 system. It's quicker and easier to debug in the simulator, and in almost all cases they will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;Instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Suggesting exercises that coincide with the current topic may be useful.
* '''Examples''': When answering student questions (e.g., on discussion boards), I often like to code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to a code example, while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
&lt;/div&gt;
&lt;/div&gt;
===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>d491550867027b07a1dbff323711675ccee0dd74</sha1>
  </revision>
  <revision>
    <id>63</id>
    <parentid>62</parentid>
    <timestamp>2017-11-14T06:45:34Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="6373" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel a {
    color: #000;
}
div.panel a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

These tools were originally created to complement several second-year undergraduate computer engineering &lt;abbr title="ECE241, ECE243, ECE253"&gt;courses&lt;/abbr&gt; at the University of Toronto, and have since been used by other similar courses. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these tools useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=/asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and perhaps used for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The debugger includes run-time assertions to catch common mistakes (which hardware cannot do).
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/arm]][//cpulator.01xz.net/arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.
&lt;/div&gt;
&lt;/div&gt;

=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;Students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Practice the basics first so that you become quick and accurate at the simple things.
* '''Assembly coding assignments''': The CPUlator simulator is a nearly-complete simulation of a Nios and ARMv7 system. It's quicker and easier to debug in the simulator, and in almost all cases they will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;Instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Suggesting exercises that coincide with the current topic may be useful.
* '''Examples''': When answering student questions (e.g., on discussion boards), I often like to code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to a code example, while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
&lt;/div&gt;
&lt;/div&gt;
===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>5e7acb9d34fe2c6657a06f1b2b101591027711cd</sha1>
  </revision>
  <revision>
    <id>64</id>
    <parentid>63</parentid>
    <timestamp>2017-11-14T08:05:23Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <comment>/* How to use? */</comment>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="6786" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel a {
    color: #000;
}
div.panel a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

These tools were originally created to complement several second-year undergraduate computer engineering &lt;abbr title="ECE241, ECE243, ECE253"&gt;courses&lt;/abbr&gt; at the University of Toronto, and have since been used by other similar courses. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these tools useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=/asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and perhaps used for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The debugger includes run-time assertions to catch common mistakes (which hardware cannot do).
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/arm]][//cpulator.01xz.net/arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.
&lt;/div&gt;
&lt;/div&gt;

=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;Students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;Instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often like to code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>4e8f47b0e2012cf4a7ea39c851e9c8d29a99316a</sha1>
  </revision>
  <revision>
    <id>65</id>
    <parentid>64</parentid>
    <timestamp>2017-11-14T08:06:19Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <comment>/* How to use? */</comment>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="6778" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel a {
    color: #000;
}
div.panel a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

These tools were originally created to complement several second-year undergraduate computer engineering &lt;abbr title="ECE241, ECE243, ECE253"&gt;courses&lt;/abbr&gt; at the University of Toronto, and have since been used by other similar courses. These courses cover digital logic design using Verilog and assembly language programming using Nios II and ARMv7 instruction sets. You may find these tools useful either on their own, or used as part of a similar course.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=/asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and perhaps used for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The debugger includes run-time assertions to catch common mistakes (which hardware cannot do).
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/arm]][//cpulator.01xz.net/arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.
&lt;/div&gt;
&lt;/div&gt;

=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;Students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;Instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>e8660fa75124a4a7ade356a784294fb3752e0b13</sha1>
  </revision>
  <revision>
    <id>66</id>
    <parentid>65</parentid>
    <timestamp>2017-11-14T08:14:40Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <comment>/* Welcome */</comment>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="6817" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel a {
    color: #000;
}
div.panel a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* '''HDLBits''': A problem set and online judge to practice digital circuit design in Verilog
* '''ASMBits''': Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* '''CPUlator''': An in-browser full-system Nios II and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=/asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and perhaps used for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The debugger includes run-time assertions to catch common mistakes (which hardware cannot do).
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/arm]][//cpulator.01xz.net/arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.
&lt;/div&gt;
&lt;/div&gt;

=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;Students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;Instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>1b0ccf3561c1f89724faf93ff719cf1f3ef68346</sha1>
  </revision>
  <revision>
    <id>67</id>
    <parentid>66</parentid>
    <timestamp>2017-11-14T08:16:05Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <comment>/* Welcome */</comment>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="6884" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel a {
    color: #000;
}
div.panel a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system Nios II and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=/asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and perhaps used for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The debugger includes run-time assertions to catch common mistakes (which hardware cannot do).
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/arm]][//cpulator.01xz.net/arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.
&lt;/div&gt;
&lt;/div&gt;

=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;Students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;Instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>57640f9a84ea567592b9313e868400292c3b8d49</sha1>
  </revision>
  <revision>
    <id>68</id>
    <parentid>67</parentid>
    <timestamp>2017-11-14T08:17:15Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <comment>/* What's here? */</comment>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="6869" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel a {
    color: #000;
}
div.panel a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system Nios II and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=/asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The debugger includes run-time assertions to catch common errors (which hardware cannot do).
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/arm]][//cpulator.01xz.net/arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.
&lt;/div&gt;
&lt;/div&gt;

=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;Students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;Instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>c862bc8d15db0846b566bc60da531d049ee35efb</sha1>
  </revision>
  <revision>
    <id>69</id>
    <parentid>68</parentid>
    <timestamp>2017-11-14T09:07:29Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="7639" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel a {
    color: #000;
}
div.panel a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system Nios II and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The debugger includes run-time assertions to catch common errors (which hardware cannot do).
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/arm]][//cpulator.01xz.net/arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.
&lt;/div&gt;
&lt;/div&gt;

=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;Students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;Instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>b2f7f330fa1d62972a2c643c8a3bd1e9bd0cd5a3</sha1>
  </revision>
  <revision>
    <id>70</id>
    <parentid>69</parentid>
    <timestamp>2017-11-14T19:48:21Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="7635" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel div.head a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system Nios II and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The debugger includes run-time assertions to catch common errors (which hardware cannot do).
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/arm]][//cpulator.01xz.net/arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.
&lt;/div&gt;
&lt;/div&gt;

=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;Students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;Instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>97afcb6c3f4e73938909bb72eab5de0e9760a9eb</sha1>
  </revision>
  <revision>
    <id>71</id>
    <parentid>70</parentid>
    <timestamp>2017-11-14T19:50:34Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <comment>/* How to use? */</comment>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="7643" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel div.head a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system Nios II and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The debugger includes run-time assertions to catch common errors (which hardware cannot do).
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/arm]][//cpulator.01xz.net/arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.
&lt;/div&gt;
&lt;/div&gt;

=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>393a34ddf385650609d89b4e3c663852a364e69d</sha1>
  </revision>
  <revision>
    <id>78</id>
    <parentid>71</parentid>
    <timestamp>2017-11-17T20:10:14Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="7665" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel div.head a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
    padding: 0.5em 0;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system Nios II and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The debugger includes run-time assertions to catch common errors (which hardware cannot do).
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/arm]][//cpulator.01xz.net/arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.
&lt;/div&gt;
&lt;/div&gt;

=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>3f6018013b6c555cfde59ffe67e7a7d5800f403c</sha1>
  </revision>
  <revision>
    <id>79</id>
    <parentid>78</parentid>
    <timestamp>2017-11-17T20:11:32Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="7665" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel div.head a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
    padding: 0.8em 0;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system Nios II and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The debugger includes run-time assertions to catch common errors (which hardware cannot do).
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/arm]][//cpulator.01xz.net/arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.
&lt;/div&gt;
&lt;/div&gt;

=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
&lt;/div&gt;
&lt;/div&gt;

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.</text>
    <sha1>966c7c3966ae16073b1e4303a04d039b419b17d4</sha1>
  </revision>
  <revision>
    <id>80</id>
    <parentid>79</parentid>
    <timestamp>2017-11-17T20:12:21Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="7358" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel div.head a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
    padding: 0.8em 0;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system Nios II and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The debugger includes run-time assertions to catch common errors (which hardware cannot do).
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/arm]][//cpulator.01xz.net/arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.
&lt;/div&gt;
&lt;/div&gt;

=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
&lt;/div&gt;
&lt;/div&gt;</text>
    <sha1>d84a39a78a5ddc17e80944340ab6da1db3e89e60</sha1>
  </revision>
  <revision>
    <id>82</id>
    <parentid>80</parentid>
    <timestamp>2017-11-17T20:13:59Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="7372" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel div.head a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
    padding: 0.8em 0;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
  padding: 0;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system Nios II and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The debugger includes run-time assertions to catch common errors (which hardware cannot do).
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/arm]][//cpulator.01xz.net/arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.
&lt;/div&gt;
&lt;/div&gt;

=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
&lt;/div&gt;
&lt;/div&gt;</text>
    <sha1>610dca77471f5d6b88d7beb728081cada0d8cb90</sha1>
  </revision>
  <revision>
    <id>83</id>
    <parentid>82</parentid>
    <timestamp>2017-11-17T22:26:15Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="7573" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel div.head a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
    padding: 0.8em 0;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
  padding: 0;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system Nios II and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The debugger includes run-time assertions to catch common errors (which hardware cannot do).
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/arm]][//cpulator.01xz.net/arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.
&lt;/div&gt;
&lt;/div&gt;

=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
* '''Other''': If you have more ideas, or if you're thinking of using these tools in your courses in '''spring 2018''' and need changes or new features, [mailto:henry@stuffedcow.net send me an email]!
&lt;/div&gt;
&lt;/div&gt;</text>
    <sha1>00c9c51e00640d3c56b24cefa6173c0f88bb3a20</sha1>
  </revision>
  <revision>
    <id>84</id>
    <parentid>83</parentid>
    <timestamp>2017-11-17T23:55:20Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <comment>/* How to use? */</comment>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="7586" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel div.head a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
    padding: 0.8em 0;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
  padding: 0;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system Nios II and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The debugger includes run-time assertions to catch common errors (which hardware cannot do).
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/arm]][//cpulator.01xz.net/arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.
&lt;/div&gt;
&lt;/div&gt;

=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
* '''Other''': If you have more ideas, or if you're thinking of using these tools in your courses (especially in '''spring 2018''') and need changes or new features, [mailto:henry@stuffedcow.net send me an email]!
&lt;/div&gt;
&lt;/div&gt;</text>
    <sha1>25d609589ea3ef07da6511632fa6d4c5482b22da</sha1>
  </revision>
  <revision>
    <id>85</id>
    <parentid>84</parentid>
    <timestamp>2017-11-18T00:03:48Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="7790" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel div.head a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
    padding: 0.8em 0;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
  padding: 0;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system Nios II and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The debugger includes run-time assertions to catch common errors (which hardware cannot do).
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/arm]][//cpulator.01xz.net/arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.
&lt;/div&gt;
&lt;/div&gt;

=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
* '''Other''': If you have more ideas, or if you're thinking of using these tools in your courses (especially in '''spring 2018''') and need changes or new features, [mailto:henry@stuffedcow.net send me an email]!
** Teaching something other than Verilog, Nios II, or ARMv7? It may be feasible to support a new tool/HDL/instruction set, but I wouldn't spend the effort to support it unless I know someone will use it.
&lt;/div&gt;
&lt;/div&gt;</text>
    <sha1>70f3780ff074f7dbc5ad614bdc64c73cfe33d19c</sha1>
  </revision>
  <revision>
    <id>86</id>
    <parentid>85</parentid>
    <timestamp>2017-11-20T09:59:05Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <comment>/* How to use? */</comment>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="7940" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel div.head a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
    padding: 0.8em 0;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
  padding: 0;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system Nios II and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The debugger includes run-time assertions to catch common errors (which hardware cannot do).
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/arm]][//cpulator.01xz.net/arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.
&lt;/div&gt;
&lt;/div&gt;

=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Flipped clasrooms''': The auto-graded exercises could form one component of a flipped classroom, by providing a method for evaluating progress. 
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
* '''Other''': If you have more ideas, or if you're thinking of using these tools in your courses (especially in '''spring 2018''') and need changes or new features, [mailto:henry@stuffedcow.net send me an email]!
** Teaching something other than Verilog, Nios II, or ARMv7? It may be feasible to support a new tool/HDL/instruction set, but I wouldn't spend the effort to support it unless I know someone will use it.
&lt;/div&gt;
&lt;/div&gt;</text>
    <sha1>a2a1e2e67dbf9f59c83178f98046ff7683fa07f4</sha1>
  </revision>
  <revision>
    <id>87</id>
    <parentid>86</parentid>
    <timestamp>2017-11-30T23:50:31Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="7906" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel div.head a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
    padding: 0.8em 0;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
  padding: 0;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system Nios II and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net]][//cpulator.01xz.net CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The debugger includes run-time assertions to catch common errors (which hardware cannot do).
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/arm]][//cpulator.01xz.net/arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.
&lt;/div&gt;
&lt;/div&gt;

=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Flipped clasrooms''': The auto-graded exercises could form one component of a flipped classroom, by providing a method for evaluating progress. 
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
* '''Other''': If you have more ideas, or if you're thinking of using these tools in your courses and need changes or new features, [mailto:henry@stuffedcow.net send me an email]!
** Teaching something other than Verilog, Nios II, or ARMv7? It may be feasible to support a new tool/HDL/instruction set, but I wouldn't spend the effort to support it unless I know someone will use it.
&lt;/div&gt;
&lt;/div&gt;</text>
    <sha1>cccaef1a3c27d2ef96666a6efeea02679f7b3bf0</sha1>
  </revision>
  <revision>
    <id>88</id>
    <parentid>87</parentid>
    <timestamp>2018-01-07T05:13:23Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="7930" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel div.head a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
    padding: 0.8em 0;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
  padding: 0;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system Nios II and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/v1/]][//cpulator.01xz.net/v1/ CPUlator &amp;mdash; Nios II]&lt;/div&gt;

&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The debugger includes run-time assertions to catch common errors (which hardware cannot do).
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel4_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/v1/?sys=arm]][//cpulator.01xz.net/v1/?sys=arm CPUlator &amp;mdash; ARMv7]&lt;/div&gt;
&lt;div id="panel4_more" style="display:none;"&gt;
This is a shortcut to start CPUlator with an ARMv7 system. The simulated system can be changed within the simulator.
&lt;/div&gt;
&lt;/div&gt;

=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Flipped clasrooms''': The auto-graded exercises could form one component of a flipped classroom, by providing a method for evaluating progress. 
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
* '''Other''': If you have more ideas, or if you're thinking of using these tools in your courses and need changes or new features, [mailto:henry@stuffedcow.net send me an email]!
** Teaching something other than Verilog, Nios II, or ARMv7? It may be feasible to support a new tool/HDL/instruction set, but I wouldn't spend the effort to support it unless I know someone will use it.
&lt;/div&gt;
&lt;/div&gt;</text>
    <sha1>e343b96f5b8058314f7ccd37dfee5d23d54eef65</sha1>
  </revision>
  <revision>
    <id>89</id>
    <parentid>88</parentid>
    <timestamp>2018-01-07T08:09:27Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="7766" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel div.head a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
    padding: 0.8em 0;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
  padding: 0;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system Nios II and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/]][//cpulator.01xz.net/ CPUlator Simulator]&lt;html&gt;&lt;div style="font-size: 60%; font-variant: small-caps; font-weight: bold; display: inline-block; padding: 1px 5px; background-color: #ff8f00; margin-left: 1.4em; vertical-align: top; color: #fff; box-shadow: 2px 2px 5px #777; border-radius: 4px;"&gt;New!&lt;/div&gt;&lt;/html&gt;&lt;/div&gt;
&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The simulator includes run-time assertions to catch common errors (which hardware cannot do).

The previous version of CPUlator is [//cpulator.01xz.net/v1/ here].
&lt;/div&gt;
&lt;/div&gt;


=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Flipped clasrooms''': The auto-graded exercises could form one component of a flipped classroom, by providing a method for evaluating progress. 
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
* '''Other''': If you have more ideas, or if you're thinking of using these tools in your courses and need changes or new features, [mailto:henry@stuffedcow.net send me an email]!
** Teaching something other than Verilog, Nios II, or ARMv7? It may be feasible to support a new tool/HDL/instruction set, but I wouldn't spend the effort to support it unless I know someone will use it.
&lt;/div&gt;
&lt;/div&gt;</text>
    <sha1>86eeb22703c23f19ae1c1a36067b9cf0bb4333cd</sha1>
  </revision>
  <revision>
    <id>90</id>
    <parentid>89</parentid>
    <timestamp>2018-01-08T04:38:24Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="7838" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel div.head a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
    padding: 0.8em 0;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
  padding: 0;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system Nios II and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/]][//cpulator.01xz.net/ CPUlator Simulator]&lt;html&gt;&lt;div style="font-size: 60%; font-variant: small-caps; font-weight: bold; display: inline-block; padding: 1px 5px; background-color: #ff8f00; margin-left: 1.4em; vertical-align: top; color: #fff; box-shadow: 2px 2px 5px #777; border-radius: 4px;"&gt;New!&lt;/div&gt;&lt;/html&gt;&lt;/div&gt;
&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The simulator includes run-time assertions to catch common errors (which hardware cannot do).

The [//cpulator.01xz.net current version] was released Jan. 7, 2018.&lt;br&gt;The previous version of CPUlator is [//cpulator.01xz.net/v1/ here].
&lt;/div&gt;
&lt;/div&gt;


=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Flipped clasrooms''': The auto-graded exercises could form one component of a flipped classroom, by providing a method for evaluating progress. 
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
* '''Other''': If you have more ideas, or if you're thinking of using these tools in your courses and need changes or new features, [mailto:henry@stuffedcow.net send me an email]!
** Teaching something other than Verilog, Nios II, or ARMv7? It may be feasible to support a new tool/HDL/instruction set, but I wouldn't spend the effort to support it unless I know someone will use it.
&lt;/div&gt;
&lt;/div&gt;</text>
    <sha1>cde2193fb55fd53a0ef74887256f27f92641a451</sha1>
  </revision>
  <revision>
    <id>91</id>
    <parentid>90</parentid>
    <timestamp>2018-01-21T23:54:27Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="7882" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel div.head a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
    padding: 0.8em 0;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
  padding: 0;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system Nios II and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/]][//cpulator.01xz.net/ CPUlator Simulator]&lt;html&gt;&lt;div style="font-size: 60%; font-variant: small-caps; font-weight: bold; display: inline-block; padding: 1px 5px; background-color: #ff8f00; margin-left: 1.4em; vertical-align: top; color: #fff; box-shadow: 2px 2px 5px #777; border-radius: 4px;"&gt;New!&lt;/div&gt;&lt;/html&gt;&lt;/div&gt;
&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The simulator includes run-time assertions to catch common errors (which hardware cannot do).

Coming soon: MIPS32 release 6 ISA support.

The [//cpulator.01xz.net current version] was released Jan. 7, 2018.&lt;br&gt;The previous version of CPUlator is [//cpulator.01xz.net/v1/ here].
&lt;/div&gt;
&lt;/div&gt;


=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Flipped clasrooms''': The auto-graded exercises could form one component of a flipped classroom, by providing a method for evaluating progress. 
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
* '''Other''': If you have more ideas, or if you're thinking of using these tools in your courses and need changes or new features, [mailto:henry@stuffedcow.net send me an email]!
** Teaching something other than Verilog, Nios II, or ARMv7? It may be feasible to support a new tool/HDL/instruction set, but I wouldn't spend the effort to support it unless I know someone will use it.
&lt;/div&gt;
&lt;/div&gt;</text>
    <sha1>ff493686c66f2d9cef96f1301ac9b3ce6e8d5bcd</sha1>
  </revision>
  <revision>
    <id>92</id>
    <parentid>91</parentid>
    <timestamp>2018-01-21T23:54:47Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="7888" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel div.head a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
    padding: 0.8em 0;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
  padding: 0;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system Nios II and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/]][//cpulator.01xz.net/ CPUlator Simulator]&lt;html&gt;&lt;div style="font-size: 60%; font-variant: small-caps; font-weight: bold; display: inline-block; padding: 1px 5px; background-color: #ff8f00; margin-left: 1.4em; vertical-align: top; color: #fff; box-shadow: 2px 2px 5px #777; border-radius: 4px;"&gt;New!&lt;/div&gt;&lt;/html&gt;&lt;/div&gt;
&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II and ARMv7 systems. The simulator also simulates some I/O devices, based on the computer systems used by the Altera University Program.
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The simulator includes run-time assertions to catch common errors (which hardware cannot do).

'''Coming soon''': MIPS32 release 6 ISA support.

The [//cpulator.01xz.net current version] was released Jan. 7, 2018.&lt;br&gt;The previous version of CPUlator is [//cpulator.01xz.net/v1/ here].
&lt;/div&gt;
&lt;/div&gt;


=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Flipped clasrooms''': The auto-graded exercises could form one component of a flipped classroom, by providing a method for evaluating progress. 
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
* '''Other''': If you have more ideas, or if you're thinking of using these tools in your courses and need changes or new features, [mailto:henry@stuffedcow.net send me an email]!
** Teaching something other than Verilog, Nios II, or ARMv7? It may be feasible to support a new tool/HDL/instruction set, but I wouldn't spend the effort to support it unless I know someone will use it.
&lt;/div&gt;
&lt;/div&gt;</text>
    <sha1>5b01de507078bea2b73bacad8819de7594210b05</sha1>
  </revision>
  <revision>
    <id>93</id>
    <parentid>92</parentid>
    <timestamp>2018-01-26T22:49:25Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="8192" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel div.head a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
    padding: 0.8em 0;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
  padding: 0;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system Nios II and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/]][//cpulator.01xz.net/ CPUlator Simulator]&lt;html&gt;&lt;div style="font-size: 60%; font-variant: small-caps; font-weight: bold; display: inline-block; padding: 1px 5px; background-color: #ff8f00; margin-left: 1.4em; vertical-align: top; color: #fff; box-shadow: 2px 2px 5px #777; border-radius: 4px;"&gt;New!&lt;/div&gt;&lt;/html&gt;&lt;/div&gt;
&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II, ARMv7, and MIPS systems. The simulator also simulates some I/O devices (based on the computer systems used by the Altera University Program for Nios II and ARMv7, based on SPIM for MIPS).
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The simulator includes run-time assertions to catch common errors (which hardware cannot do).

&lt;html&gt;&lt;div style="font-size: 60%; font-variant: small-caps; font-weight: bold; display: inline-block; padding: 1px 5px; background-color: #ff8f00; margin-right: 1em; vertical-align: top; color: #fff; box-shadow: 2px 2px 5px #777; border-radius: 4px;"&gt;New!&lt;/div&gt;&lt;/html&gt; MIPS32 release 6 ISA support.

The [//cpulator.01xz.net current version] was released Jan. 7, 2018.&lt;br&gt;The previous version of CPUlator is [//cpulator.01xz.net/v1/ here].
&lt;/div&gt;
&lt;/div&gt;


=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Flipped clasrooms''': The auto-graded exercises could form one component of a flipped classroom, by providing a method for evaluating progress. 
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
* '''Other''': If you have more ideas, or if you're thinking of using these tools in your courses and need changes or new features, [mailto:henry@stuffedcow.net send me an email]!
** Teaching something other than Verilog, Nios II, or ARMv7? It may be feasible to support a new tool/HDL/instruction set, but I wouldn't spend the effort to support it unless I know someone will use it.
&lt;/div&gt;
&lt;/div&gt;</text>
    <sha1>42e54ea91c730e19246128ba5e9a97ff55dc22b0</sha1>
  </revision>
  <revision>
    <id>94</id>
    <parentid>93</parentid>
    <timestamp>2018-03-01T05:40:28Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="7923" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel div.head a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
    padding: 0.8em 0;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
  padding: 0;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system Nios II and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/]][//cpulator.01xz.net/ CPUlator Simulator]&lt;/div&gt;
&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II, ARMv7, and MIPS systems. The simulator also simulates some I/O devices (based on the computer systems used by the Altera University Program for Nios II and ARMv7, based on SPIM for MIPS).
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The simulator includes run-time assertions to catch common errors (which hardware cannot do).

&lt;html&gt;&lt;div style="font-size: 60%; font-variant: small-caps; font-weight: bold; display: inline-block; padding: 1px 5px; background-color: #ff8f00; margin-right: 1em; vertical-align: top; color: #fff; box-shadow: 2px 2px 5px #777; border-radius: 4px;"&gt;New!&lt;/div&gt;&lt;/html&gt; MIPS32 release 6 ISA support.

The [//cpulator.01xz.net current version] was released Jan. 7, 2018.&lt;br&gt;The previous version of CPUlator is [//cpulator.01xz.net/v1/ here].
&lt;/div&gt;
&lt;/div&gt;


=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Flipped clasrooms''': The auto-graded exercises could form one component of a flipped classroom, by providing a method for evaluating progress. 
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
* '''Other''': If you have more ideas, or if you're thinking of using these tools in your courses and need changes or new features, [mailto:henry@stuffedcow.net send me an email]!
** Teaching something other than Verilog, Nios II, or ARMv7? It may be feasible to support a new tool/HDL/instruction set, but I wouldn't spend the effort to support it unless I know someone will use it.
&lt;/div&gt;
&lt;/div&gt;</text>
    <sha1>1945aac85940ffe1f2a5b50ccd9fa47dc5901434</sha1>
  </revision>
  <revision>
    <id>95</id>
    <parentid>94</parentid>
    <timestamp>2018-03-01T05:40:52Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="7930" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel div.head a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
    padding: 0.8em 0;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
  padding: 0;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system MIPS, Nios II, and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/]][//cpulator.01xz.net/ CPUlator Simulator]&lt;/div&gt;
&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II, ARMv7, and MIPS systems. The simulator also simulates some I/O devices (based on the computer systems used by the Altera University Program for Nios II and ARMv7, based on SPIM for MIPS).
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The simulator includes run-time assertions to catch common errors (which hardware cannot do).

&lt;html&gt;&lt;div style="font-size: 60%; font-variant: small-caps; font-weight: bold; display: inline-block; padding: 1px 5px; background-color: #ff8f00; margin-right: 1em; vertical-align: top; color: #fff; box-shadow: 2px 2px 5px #777; border-radius: 4px;"&gt;New!&lt;/div&gt;&lt;/html&gt; MIPS32 release 6 ISA support.

The [//cpulator.01xz.net current version] was released Jan. 7, 2018.&lt;br&gt;The previous version of CPUlator is [//cpulator.01xz.net/v1/ here].
&lt;/div&gt;
&lt;/div&gt;


=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Flipped clasrooms''': The auto-graded exercises could form one component of a flipped classroom, by providing a method for evaluating progress. 
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
* '''Other''': If you have more ideas, or if you're thinking of using these tools in your courses and need changes or new features, [mailto:henry@stuffedcow.net send me an email]!
** Teaching something other than Verilog, Nios II, or ARMv7? It may be feasible to support a new tool/HDL/instruction set, but I wouldn't spend the effort to support it unless I know someone will use it.
&lt;/div&gt;
&lt;/div&gt;</text>
    <sha1>6c67ac69050f4306049b630d599a7e719f2bcf11</sha1>
  </revision>
  <revision>
    <id>96</id>
    <parentid>95</parentid>
    <timestamp>2018-03-01T05:43:46Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="7818" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel div.head a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
    padding: 0.8em 0;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
  padding: 0;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system MIPS, Nios II, and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/]][//cpulator.01xz.net/ CPUlator Simulator]&lt;/div&gt;
&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II, ARMv7, and MIPS systems, intended for education use. The simulator also simulates some I/O devices (based on the computer systems used by the Altera University Program for Nios II and ARMv7, based on SPIM for MIPS).
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The simulator includes run-time assertions to catch common errors (which hardware cannot do).

&lt;html&gt;&lt;div style="font-size: 60%; font-variant: small-caps; font-weight: bold; display: inline-block; padding: 1px 5px; background-color: #ff8f00; margin-right: 1em; vertical-align: top; color: #fff; box-shadow: 2px 2px 5px #777; border-radius: 4px;"&gt;New!&lt;/div&gt;&lt;/html&gt; MIPS32 release 6 ISA support.

&lt;/div&gt;
&lt;/div&gt;


=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Flipped clasrooms''': The auto-graded exercises could form one component of a flipped classroom, by providing a method for evaluating progress. 
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
* '''Other''': If you have more ideas, or if you're thinking of using these tools in your courses and need changes or new features, [mailto:henry@stuffedcow.net send me an email]!
** Teaching something other than Verilog, Nios II, or ARMv7? It may be feasible to support a new tool/HDL/instruction set, but I wouldn't spend the effort to support it unless I know someone will use it.
&lt;/div&gt;
&lt;/div&gt;</text>
    <sha1>5a3c91f6b2158072e98155b5cd910915e37335cc</sha1>
  </revision>
  <revision>
    <id>97</id>
    <parentid>96</parentid>
    <timestamp>2018-11-23T10:07:14Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="7834" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel div.head a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
    padding: 0.8em 0;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
  padding: 0;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system MIPS, Nios II, and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/]][//cpulator.01xz.net/ CPUlator Simulator]&lt;/div&gt;
&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II, ARMv7, and MIPS systems, intended for education use. The simulator also simulates some I/O devices (based on the computer systems used by the Altera University Program for Nios II and ARMv7, based on SPIM for MIPS).
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The simulator includes run-time assertions to catch common errors (which hardware cannot do).

&lt;html&gt;&lt;div style="font-size: 60%; font-variant: small-caps; font-weight: bold; display: inline-block; padding: 1px 5px; background-color: #ff8f00; margin-right: 1em; vertical-align: top; color: #fff; box-shadow: 2px 2px 5px #777; border-radius: 4px;"&gt;New!&lt;/div&gt;&lt;/html&gt; MIPS32 release 5 ISA support (Nov. 23, 2018).

&lt;/div&gt;
&lt;/div&gt;


=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Flipped clasrooms''': The auto-graded exercises could form one component of a flipped classroom, by providing a method for evaluating progress. 
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
* '''Other''': If you have more ideas, or if you're thinking of using these tools in your courses and need changes or new features, [mailto:henry@stuffedcow.net send me an email]!
** Teaching something other than Verilog, Nios II, or ARMv7? It may be feasible to support a new tool/HDL/instruction set, but I wouldn't spend the effort to support it unless I know someone will use it.
&lt;/div&gt;
&lt;/div&gt;</text>
    <sha1>007c98fa3585cabf2a9db6223d6485f5f6468f17</sha1>
  </revision>
  <revision>
    <id>98</id>
    <parentid>97</parentid>
    <timestamp>2019-01-21T09:42:04Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="7518" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;h2#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
== Welcome ==
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel div.head a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
    padding: 0.8em 0;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
  padding: 0;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system MIPS, Nios II, and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/]][//cpulator.01xz.net/ CPUlator Simulator]&lt;/div&gt;
&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II, ARMv7, and MIPS systems, intended for education use. The simulator also simulates some I/O devices (based on the computer systems used by the Altera University Program for Nios II and ARMv7, based on SPIM for MIPS).
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The simulator includes run-time assertions to catch common errors (which hardware cannot do).

&lt;/div&gt;
&lt;/div&gt;


=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Flipped clasrooms''': The auto-graded exercises could form one component of a flipped classroom, by providing a method for evaluating progress. 
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
* '''Other''': If you have more ideas, or if you're thinking of using these tools in your courses and need changes or new features, [mailto:henry@stuffedcow.net send me an email]!
** Teaching something other than Verilog, Nios II, or ARMv7? It may be feasible to support a new tool/HDL/instruction set, but I wouldn't spend the effort to support it unless I know someone will use it.
&lt;/div&gt;
&lt;/div&gt;</text>
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  <revision>
    <id>104</id>
    <parentid>98</parentid>
    <timestamp>2024-08-14T08:44:38Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
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    <text bytes="7514" xml:space="preserve">__NOTOC__
&lt;html&gt;&lt;style&gt;#firstHeading { display:none;}
&lt;/style&gt;&lt;/html&gt;
= Welcome =
&lt;html&gt;
&lt;style&gt;
div.panel {
    border: 1px #ccc solid;
    background: #f8fcff;
    margin: 0.8em 1.0em;
    display: block;
    padding: 1em;
}
div.panel div.head a:hover {
    color: #2ba6cb;
}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
    padding: 0.8em 0;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
  padding: 0;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system MIPS, Nios II, and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net]][//hdlbits.01xz.net HDLBits]&lt;/div&gt;
&lt;div id="panel1_more" style="display:none;"&gt;
HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
&lt;/div&gt;
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel5_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_seq.png|link=//hdlbits.01xz.net/wiki/Iverilog]][//hdlbits.01xz.net/wiki/Iverilog Verilog Simulator]&lt;/div&gt;
&lt;div id="panel5_more" style="display:none;"&gt;
This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Asmbits_logo.png|link=//asmbits.01xz.net]][//asmbits.01xz.net ASMBits]&lt;/div&gt;
&lt;div id="panel2_more" style="display:none;"&gt;
ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
&lt;/div&gt; 
&lt;/div&gt;

&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/]][//cpulator.01xz.net/ CPUlator Simulator]&lt;/div&gt;
&lt;div id="panel3_more" style="display:none;"&gt;
CPUlator is a full-system simulator and debugger for Nios II, ARMv7, and MIPS systems, intended for education use. The simulator also simulates some I/O devices (based on the computer systems used by the Altera University Program for Nios II and ARMv7, based on SPIM for MIPS).
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The simulator includes run-time assertions to catch common errors (which hardware cannot do).

&lt;/div&gt;
&lt;/div&gt;


=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For students&lt;/div&gt;
&lt;div id="paneluse1_more" style="display:none;"&gt;
* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
&lt;/div&gt;
&lt;/div&gt;
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse2_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For instructors&lt;/div&gt;
&lt;div id="paneluse2_more" style="display:none;"&gt;
* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Flipped clasrooms''': The auto-graded exercises could form one component of a flipped classroom, by providing a method for evaluating progress. 
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
* '''Other''': If you have more ideas, or if you're thinking of using these tools in your courses and need changes or new features, [mailto:henry@stuffedcow.net send me an email]!
** Teaching something other than Verilog, Nios II, or ARMv7? It may be feasible to support a new tool/HDL/instruction set, but I wouldn't spend the effort to support it unless I know someone will use it.
&lt;/div&gt;
&lt;/div&gt;</text>
    <sha1>be136c9ceb8d0a7853787a857d30ef8ea8459bc2</sha1>
  </revision>
</page>
<page arvcontinue="20170924204057|54">
  <title>Project:About</title>
  <ns>4</ns>
  <id>7</id>
  <revision>
    <id>75</id>
    <parentid>40</parentid>
    <timestamp>2017-11-15T04:32:08Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="1303" xml:space="preserve">=== What's with the name? ===
The name &lt;b&gt;01xz.net&lt;/b&gt; is named after the four-state logic used by nets (and variables) in Verilog: '''0''', '''1''', '''x''' (unknown/don't-care), and '''z''' (high impedance). SystemVerilog added two-state (0 and 1) variables to the language, but nets are still always four-state.

=== More ===
Here are links to slightly more detailed About pages for each project:
* [//hdlbits.01xz.net/wiki/Project:About About HDLBits]
* [//asmbits.01xz.net/wiki/Project:About About ASMBits]
* [//cpulator.01xz.net/doc.html CPUlator documentation]

=== What does this site run? ====
This site runs on [https://www.mediawiki.org/wiki/MediaWiki MediaWiki] with the [https://www.mediawiki.org/wiki/Skin:Foreground Foreground skin]. On top of this, substantial new functionality was added as a custom MediaWiki extension.

The back-end (compile, judge, progress tracking) is generally PHP calling shell scripts that run various CAD tools, with the results stored into a MariaDB database.

CPUlator is static HTML, CSS, and JavaScript. The only server-side code is for running the assembler. The core of the simulator is written in C++ and compiled to asm.js using [http://emscripten.org Emscripten]. The simulation runs entirely inside the client browser with no server-side interaction.</text>
    <sha1>a9b1d71056282f2fb07d7c2175837bfd1e4ace0c</sha1>
  </revision>
  <revision>
    <id>76</id>
    <parentid>75</parentid>
    <timestamp>2017-11-15T04:42:40Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="1302" xml:space="preserve">=== What's with the name? ===
The name &lt;b&gt;01xz.net&lt;/b&gt; is named after the four-state logic used by nets (and variables) in Verilog: '''0''', '''1''', '''x''' (unknown/don't-care), and '''z''' (high impedance). SystemVerilog added two-state (0 and 1) variables to the language, but nets are still always four-state.

=== More ===
Here are links to slightly more detailed About pages for each project:
* [//hdlbits.01xz.net/wiki/Project:About About HDLBits]
* [//asmbits.01xz.net/wiki/Project:About About ASMBits]
* [//cpulator.01xz.net/doc.html CPUlator documentation]

=== What does this site run? ===
This site runs on [https://www.mediawiki.org/wiki/MediaWiki MediaWiki] with the [https://www.mediawiki.org/wiki/Skin:Foreground Foreground skin]. On top of this, substantial new functionality was added as a custom MediaWiki extension.

The back-end (compile, judge, progress tracking) is generally PHP calling shell scripts that run various CAD tools, with the results stored into a MariaDB database.

CPUlator is static HTML, CSS, and JavaScript. The only server-side code is for running the assembler. The core of the simulator is written in C++ and compiled to asm.js using [http://emscripten.org Emscripten]. The simulation runs entirely inside the client browser with no server-side interaction.</text>
    <sha1>bc7c6ad61768413d8dfe35fd0cdbc6f9943040e0</sha1>
  </revision>
  <revision>
    <id>81</id>
    <parentid>76</parentid>
    <timestamp>2017-11-17T20:12:33Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="1609" xml:space="preserve">=== What's with the name? ===
The name &lt;b&gt;01xz.net&lt;/b&gt; is named after the four-state logic used by nets (and variables) in Verilog: '''0''', '''1''', '''x''' (unknown/don't-care), and '''z''' (high impedance). SystemVerilog added two-state (0 and 1) variables to the language, but nets are still always four-state.

=== More ===
Here are links to slightly more detailed About pages for each project:
* [//hdlbits.01xz.net/wiki/Project:About About HDLBits]
* [//asmbits.01xz.net/wiki/Project:About About ASMBits]
* [//cpulator.01xz.net/doc.html CPUlator documentation]

===About Me===
I'm [http://www.stuffedcow.net/ Henry Wong], a former lab teaching assistant for ECE253, 243, and 241 at the University of Toronto during my Ph.D. studies. These tools were created during my last few years as TA while pondering how to improve learning when the number of TA hours is finite.

=== What does this site run? ===
This site runs on [https://www.mediawiki.org/wiki/MediaWiki MediaWiki] with the [https://www.mediawiki.org/wiki/Skin:Foreground Foreground skin]. On top of this, substantial new functionality was added as a custom MediaWiki extension.

The back-end (compile, judge, progress tracking) is generally PHP calling shell scripts that run various CAD tools, with the results stored into a MariaDB database.

CPUlator is static HTML, CSS, and JavaScript. The only server-side code is for running the assembler. The core of the simulator is written in C++ and compiled to asm.js using [http://emscripten.org Emscripten]. The simulation runs entirely inside the client browser with no server-side interaction.</text>
    <sha1>a87f72f6767e7eb7c2968906ad85987bf0272a74</sha1>
  </revision>
</page>
<page arvcontinue="20170924204057|54">
  <title>File:Logo niossim.png</title>
  <ns>6</ns>
  <id>6</id>
  <revision>
    <id>99</id>
    <parentid>23</parentid>
    <timestamp>2019-03-10T03:37:58Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <comment>Henry uploaded a new version of [[File:Logo niossim.png]]</comment>
    <model>wikitext</model>
    <format>text/x-wiki</format>
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    <sha1>da39a3ee5e6b4b0d3255bfef95601890afd80709</sha1>
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    <parentid>99</parentid>
    <timestamp>2019-03-10T03:41:53Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <comment>Henry uploaded a new version of [[File:Logo niossim.png]]</comment>
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    <format>text/x-wiki</format>
    <text bytes="0" xml:space="preserve"></text>
    <sha1>da39a3ee5e6b4b0d3255bfef95601890afd80709</sha1>
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    <timestamp>2019-03-10T03:44:57Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <comment>Henry uploaded a new version of [[File:Logo niossim.png]]</comment>
    <model>wikitext</model>
    <format>text/x-wiki</format>
    <text bytes="0" xml:space="preserve"></text>
    <sha1>da39a3ee5e6b4b0d3255bfef95601890afd80709</sha1>
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  <title>MediaWiki:Foreground.css</title>
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    <timestamp>2024-08-14T08:50:15Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
    </contributor>
    <comment>Created page with "form#searchform {     display: none; }"</comment>
    <model>css</model>
    <format>text/css</format>
    <text bytes="38" xml:space="preserve">form#searchform {
    display: none;
}</text>
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<page arvcontinue="20170924204057|54">
  <title>MediaWiki:Disclaimers</title>
  <ns>8</ns>
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    <timestamp>2024-10-02T04:45:45Z</timestamp>
    <contributor>
      <username>Henry</username>
      <id>1</id>
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    <comment>Created page with "-"</comment>
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    <format>text/x-wiki</format>
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    <contributor>
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      <id>1</id>
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    <comment>Created page with "-"</comment>
    <model>wikitext</model>
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    <text bytes="1" xml:space="preserve">-</text>
    <sha1>3bc15c8aae3e4124dd409035f32ea2fd6835efc9</sha1>
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  <title>Main Page</title>
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    <contributor>
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&lt;html&gt;
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}
div.panel div.head a:hover {
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}
div.panel div.head {
    font-size:1.25em;
    line-height: 42px;
    font-weight: bold;
    display:block;
    position: relative;
}
div.panel div.head a { 
    position: relative;
    z-index: 1;
    color: #1a6177;
    padding: 0.8em 0;
}
div.panel img { 
display:block;
float:left;
margin: 7px 0.5em 7px 0;
width: 40px;
height: 28px;

}
h3 {
  margin-top: 1.4em;
}
div.panel div.head a.plus {
  display: block;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  font-size:36px;
  line-height:42px;
  color: #aaa;
  z-index: 0;
  text-align: right;
  padding: 0;
}

&lt;/style&gt;&lt;/html&gt;

&lt;b&gt;This site contains tools that help you learn the fundamentals of the design of computers&lt;/b&gt;

* [//hdlbits.01xz.net/ '''HDLBits''']: A problem set and online judge to practice digital circuit design in Verilog
* [//asmbits.01xz.net/ '''ASMBits''']: Just like HDLBits, but for practicing Nios II or ARMv7 assembly language
* [//cpulator.01xz.net/ '''CPUlator''']: An in-browser full-system MIPS, Nios II, and ARMv7 simulator and debugger

These tools were originally created to complement second-year undergraduate computer engineering (digital logic and computer organization) courses at the University of Toronto, and have since been used by other similar courses.

Why were these created? Practice is essential when learning any new language (or anything else, really). These tools were created to make it quick and easy to do more practice on short problems.

===What's here?===

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HDLBits is a set of short Verilog design problems. An online judge checks solutions for correctness. The problems set begins in a tutorial style that teaches basic Verilog language features, and progresses to increasingly challenging designs.

Each problem requires you to write some Verilog code. When you submit your code, the online judge tests your design for correctness (but unfortunately not coding style). The large number of short problems with instant feedback encourages more practice than (typically more difficult but less frequent) assignments or labs.
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This is a web interface to [http://iverilog.icarus.com/ Icarus Verilog]. Its main purpose is for creating shareable simulations of short bits of Verilog code. The limitations of the web interface mean that running a Verilog simulator offline is more suitable unless you're simulating a very simple circuit.

Main limitations: single source file, limited simulation CPU time, no interactive debugging.
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ASMBits is a set of short assembly language programming problems (for Nios II and ARMv7), in the same style as HDLBits.
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&lt;div class="panel"&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#panel3_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;[[File:Logo_niossim.png|link=//cpulator.01xz.net/]][//cpulator.01xz.net/ CPUlator Simulator]&lt;/div&gt;
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CPUlator is a full-system simulator and debugger for Nios II, ARMv7, and MIPS systems, intended for education use. The simulator also simulates some I/O devices (based on the computer systems used by the Altera University Program for Nios II and ARMv7, based on SPIM for MIPS).
It can be used to work on lab assignments without hardware, to debug solutions for ASMBits exercises, and for in-lecture demonstrations.

The simulator is complete enough to do most lab assignments that are based on Altera's University Program's computer systems (including interrupts, but excluding MMU). The simulator includes run-time assertions to catch common errors (which hardware cannot do).

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=== How to use? ===
&lt;div class="panel&gt;&lt;div class="head"&gt;&lt;html&gt;&lt;a href="#" onclick="$('#paneluse1_more').toggle(); return false;" class="plus"&gt;&lt;i class="fa fa-angle-double-down" aria-hidden="true"&gt;&lt;/i&gt;&lt;/a&gt;&lt;/html&gt;For students&lt;/div&gt;
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* '''Practice''': The HDLBits and ASMBits problem sets includes exercises of varying difficulty. Start with the easiest few problems under each topic. Even if you don't have time to get to the more difficult problems, being quick and accurate at creating simple designs can be a big help.
* '''Assembly language programming''': The CPUlator simulator is a nearly-complete simulation of a Nios II and ARMv7 system. It's quicker and easier to debug your lab assignments in the simulator (it even catches some common errors), and in almost all cases programs written in the simulator will work unmodified on real hardware.
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* '''Practice''': Simply informing students of the availability of optional "extra practice" tends to reach only the subset of students (my experience so far suggests under 10%). Due to the large number of exercises, suggesting exercises that coincide with the current topic may be useful.
* '''Code examples''': When answering student questions (e.g., on discussion boards), I often code up a demonstration of the answer. The "Upload and share" button in CPUlator can be used to post a link to [https://cpulator.01xz.net/?loadasm=samples/share/kfgb6taom1.s a code example], while the "share" button on the [https://hdlbits.01xz.net/wiki/Iverilog Icarus Verilog web interface] can be used to link to a simple Verilog code example and testbench.
* '''Flipped clasrooms''': The auto-graded exercises could form one component of a flipped classroom, by providing a method for evaluating progress. 
* '''Demonstrations''': CPUlator may be useful for in-lecture execution of assembly code, where access to the hardware may not be convenient.
* '''Other''': If you have more ideas, or if you're thinking of using these tools in your courses and need changes or new features, [mailto:henry@stuffedcow.net send me an email]!
** Teaching something other than Verilog, Nios II, or ARMv7? It may be feasible to support a new tool/HDL/instruction set, but I wouldn't spend the effort to support it unless I know someone will use it.
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